Cita APA

Sullivan, W., & Sullivan, W. (1974). Continents in motion: The new earth debate / by Walter Sullivan. --. New York, New York: McGraw-Hill.

Citación estilo Chicago

Sullivan, Walter, y Walter Sullivan. Continents in Motion: The New Earth Debate / By Walter Sullivan. --. New York, New York: McGraw-Hill, 1974.

Cita MLA

Sullivan, Walter, y Walter Sullivan. Continents in Motion: The New Earth Debate / By Walter Sullivan. --. New York, New York: McGraw-Hill, 1974.