Cita APA (7a ed.)

Oparin, A. I. (1968). The origin and initial development of life. National Aeronautics and Space Administration ; for sale by the Clearinghouse for Federal Scientific and Technical Information.

Cita Chicago Style (17a ed.)

Oparin, Aleksandr Ivanovich. The Origin and Initial Development of Life. [Washington, D.C.] : Springfireld, Va.: National Aeronautics and Space Administration ; for sale by the Clearinghouse for Federal Scientific and Technical Information, 1968.

Cita MLA (8a ed.)

Oparin, Aleksandr Ivanovich. The Origin and Initial Development of Life. National Aeronautics and Space Administration ; for sale by the Clearinghouse for Federal Scientific and Technical Information, 1968.