Astronomical Spectroscope

Chicago citation style
Grubb, Howard. Astronomical Spectroscope. 1877. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1187502&repo=DPLA. (Accessed November 18, 2018.)
APA citation style
Grubb, Howard, (1877) Astronomical Spectroscope. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1187502&repo=DPLA
MLA citation style
Grubb, Howard. Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Anmah_1187502&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.