APA Citation

Bassler, R. S., & Bassler, R. S. (1931). Shelled invertebrates of the past and present: With chapters on geological history. Washington: Smithsonian Institution.

Chicago Style Citation

Bassler, Ray S., and Ray S. Bassler. Shelled Invertebrates of the Past and Present: With Chapters On Geological History. Washington: Smithsonian Institution, 1931.

MLA Citation

Bassler, Ray S., and Ray S. Bassler. Shelled Invertebrates of the Past and Present: With Chapters On Geological History. Washington: Smithsonian Institution, 1931.

Warning: These citations may not always be 100% accurate.