Smithsonian Institution. Office of the Secretary & Snodgrass, R. E. (1928). Morphology and evolution of insect head and its appendages. [publisher not identified].
Chicago Style (17th ed.) CitationSmithsonian Institution. Office of the Secretary and R. E. Snodgrass. Morphology and Evolution of Insect Head and Its Appendages. Washington, D.C.: [publisher not identified], 1928.
MLA (9th ed.) CitationSmithsonian Institution. Office of the Secretary and R. E. Snodgrass. Morphology and Evolution of Insect Head and Its Appendages. [publisher not identified], 1928.
Warning: These citations may not always be 100% accurate.