Cita APA (7a ed.)

Abelson,Philip H. (1957). Organic constituents of fossils. Geol. Soc. America.

Cita Chicago Style (17a ed.)

Abelson,Philip H. Organic Constituents of Fossils. -: Geol. Soc. America, 1957.

Cita MLA (8a ed.)

Abelson,Philip H. Organic Constituents of Fossils. Geol. Soc. America, 1957.