Cita APA

Encyclopaedia Britannica Educational Corporation, & Encyclopaedia Britannica Educational Corporation. (1969). The origin of life: Chemical evolution. Chicago, III.: Encyclopaedia Britannica Educational Corp.

Citación estilo Chicago

Encyclopaedia Britannica Educational Corporation, y Encyclopaedia Britannica Educational Corporation. The Origin of Life: Chemical Evolution. Chicago, III.: Encyclopaedia Britannica Educational Corp, 1969.

Cita MLA

Encyclopaedia Britannica Educational Corporation, y Encyclopaedia Britannica Educational Corporation. The Origin of Life: Chemical Evolution. Chicago, III.: Encyclopaedia Britannica Educational Corp, 1969.