Cita APA (7a ed.)

Asimov, I. (1960). The wellsprings of life. Abelard-Schuman.

Cita Chicago Style (17a ed.)

Asimov, Isaac. The Wellsprings of Life. New York [etc.]: Abelard-Schuman, 1960.

Cita MLA (9a ed.)

Asimov, Isaac. The Wellsprings of Life. Abelard-Schuman, 1960.