Designs of architectural models to be erected with Richter's "anchor blocks": no. 4 second stage for building with stones of the large caliber (booklet back cover)

Chicago citation style
Richter, Friedrich Ad., d. 1910. Designs of architectural models to be erected with Richter's "anchor blocks": no. 4 second stage for building with stones of the large caliber (booklet back cover). ca. 1900. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/295. (Accessed October 16, 2018.)
APA citation style
Richter, Friedrich Ad., d. 1910, (ca. 1900) Designs of architectural models to be erected with Richter's "anchor blocks": no. 4 second stage for building with stones of the large caliber (booklet back cover). Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/295
MLA citation style
Richter, Friedrich Ad., d. 1910. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/childrens/id/295>.
Note: These citations are programmatically generated and may be incomplete.