Geology class field trip to examine midden piles at Scripps Institution of Oceanography. Midden deposits can contain a variety of archaeological material, including animal bone, feces, shell, botanical material, vermin, sherds, lithics (especially debitage), and other artifacts and ecofacts associated with past human occupation. April 1957

Chicago citation style
Geology class field trip to examine midden piles at Scripps Institution of Oceanography. Midden deposits can contain a variety of archaeological material, including animal bone, feces, shell, botanical material, vermin, sherds, lithics (especially debitage), and other artifacts and ecofacts associated with past human occupation. April 1957. 1957-04. Retrieved from the Digital Public Library of America, https://library.ucsd.edu/dc/object/bb8806711n. (Accessed December 12, 2018.)
APA citation style
(1957-04) Geology class field trip to examine midden piles at Scripps Institution of Oceanography. Midden deposits can contain a variety of archaeological material, including animal bone, feces, shell, botanical material, vermin, sherds, lithics (especially debitage), and other artifacts and ecofacts associated with past human occupation. April 1957. Retrieved from the Digital Public Library of America, https://library.ucsd.edu/dc/object/bb8806711n
MLA citation style
Retrieved from the Digital Public Library of America <https://library.ucsd.edu/dc/object/bb8806711n>.
Note: These citations are programmatically generated and may be incomplete.