A source book of biological nature-study,
by Elliot Rowland Downing ...
APA Citation
Downing, E. Rowland. (1919). A source book of biological nature-study. Chicago, Ill.: The University of Chicago press.
MLA Citation
Downing, Elliot Rowland, 1868-. A Source Book of Biological Nature-study. Chicago, Ill.: The University of Chicago press, 1919.
Warning: These citations may not always be complete (especially for serials).