Cita APA (7th ed.)

Clark, R. W. (1972). Einstein: The life and times. Avon Books.

Cita Chicago (17th ed.)

Clark, Ronald W. Einstein: The Life and Times. Nueva York: Avon Books, 1972.

Cita MLA (9th ed.)

Clark, Ronald W. Einstein: The Life and Times. Avon Books, 1972.