New railroad map of the states of Maryland, Delaware, and the District of Columbia. Compiled and drawn by Frank Arnold Gray, 1873. (Published by Stedman, Brown & Lyon, Baltimore. 1873)New topographical atlas of the State of Maryland and the District of Columbia. With descriptions historical, scientific, and statistical, together with maps of the United States and Territories. By S.J. Martenet, H.F. Walling, and O.W. Gray, civil and topographical engineers. Published by Stedman, Brown & Lyon, Baltimore. 1873. (on verso) Entered ... 1872, by H.F. Walling, and O.W. Gray, and Simon J. Martenet ... WashingtonNew railroad map of the states of Maryland, Delaware, & District of Columbia

Chicago citation style
Gray, Frank Arnold, Gray, Ormando Willis, Lloyd, H.H, Martenet, Simon J, Walling, H. F. New railroad map of the states of Maryland, Delaware, and the District of Columbia. Compiled and drawn by Frank Arnold Gray, 1873. (Published by Stedman, Brown & Lyon, Baltimore. 1873),New topographical atlas of the State of Maryland and the District of Columbia. With descriptions historical, scientific, and statistical, together with maps of the United States and Territories. By S.J. Martenet, H.F. Walling, and O.W. Gray, civil and topographical engineers. Published by Stedman, Brown & Lyon, Baltimore. 1873. (on verso) Entered ... 1872, by H.F. Walling, and O.W. Gray, and Simon J. Martenet ... Washington,New railroad map of the states of Maryland, Delaware, & District of Columbia. 1873. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~28723~1120958. (Accessed December 19, 2018.)
APA citation style
Gray, Frank Arnold, Gray, Ormando Willis, Lloyd, H.H, Martenet, Simon J, Walling, H. F, (1873) New railroad map of the states of Maryland, Delaware, and the District of Columbia. Compiled and drawn by Frank Arnold Gray, 1873. (Published by Stedman, Brown & Lyon, Baltimore. 1873),New topographical atlas of the State of Maryland and the District of Columbia. With descriptions historical, scientific, and statistical, together with maps of the United States and Territories. By S.J. Martenet, H.F. Walling, and O.W. Gray, civil and topographical engineers. Published by Stedman, Brown & Lyon, Baltimore. 1873. (on verso) Entered ... 1872, by H.F. Walling, and O.W. Gray, and Simon J. Martenet ... Washington,New railroad map of the states of Maryland, Delaware, & District of Columbia. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~28723~1120958
MLA citation style
Gray, Frank Arnold, Gray, Ormando Willis, Lloyd, H.H, Martenet, Simon J, Walling, H. F. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~28723~1120958>.
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