Cita APA (7th ed.)

Sakharov, A. D. (1968). Progress, coexistence & intellectual freedom. W.W.Norton & Co..

Cita Chicago (17th ed.)

Sakharov, Andrei D. Progress, Coexistence & Intellectual Freedom. New York: W.W.Norton & Co., 1968.

Cita MLA (9th ed.)

Sakharov, Andrei D. Progress, Coexistence & Intellectual Freedom. W.W.Norton & Co., 1968.