Cita APA

Parker, W. H. 1., & Parker, W. H. 1. (1972). The Superpowers: The United States and the Soviet Union compared. London, Sydney: Macmillan.

Citación estilo Chicago

Parker, William Henry 1912-, y William Henry 1912- Parker. The Superpowers: The United States and the Soviet Union Compared. London, Sydney: Macmillan, 1972.

Cita MLA

Parker, William Henry 1912-, y William Henry 1912- Parker. The Superpowers: The United States and the Soviet Union Compared. London, Sydney: Macmillan, 1972.