Cita APA (7a ed.)

Sakharov, A. D., & Salisbury, H. E. (1968). Progress, coexistence, and intellectual freedom. Norton.

Cita Chicago Style (17a ed.)

Sakharov, Andrei Dmitrievich, y Harrison Evans Salisbury. Progress, Coexistence, and Intellectual Freedom. New York: Norton, 1968.

Cita MLA (9a ed.)

Sakharov, Andrei Dmitrievich, y Harrison Evans Salisbury. Progress, Coexistence, and Intellectual Freedom. Norton, 1968.