APA (7th ed.) Citation

Yochelson, E. L. (1966). Mattheva, a proposed new class of mollusks. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Yochelson, Ellis L. Mattheva, a Proposed New Class of Mollusks. Washington: U.S. Govt. Print. Off, 1966.

MLA (9th ed.) Citation

Yochelson, Ellis L. Mattheva, a Proposed New Class of Mollusks. U.S. Govt. Print. Off, 1966.