Directory of zoological taxonomists of the world,
compiled by Richard E. and Ruth M. Blackwelder.
APA Citation
Blackwelder, R. E., Blackwelder, R. M. (1961). Directory of zoological taxonomists of the world. Carbondale, Ill.: Published for the Society of Systematic Zoology by Southern Illinois University Press.
MLA Citation
Blackwelder, Richard E, and Ruth M Blackwelder. Directory of Zoological Taxonomists of the World. Carbondale, Ill.: Published for the Society of Systematic Zoology by Southern Illinois University Press, 1961.
Warning: These citations may not always be complete (especially for serials).