Cita APA (7a ed.)

Chapman, S. (1959). IGY: year of discovery: The story of the International Geophysical Year. University of Michigan.

Cita Chicago Style (17a ed.)

Chapman, Sydney. IGY: Year of Discovery: The Story of the International Geophysical Year. Michigan: University of Michigan, 1959.

Cita MLA (9a ed.)

Chapman, Sydney. IGY: Year of Discovery: The Story of the International Geophysical Year. University of Michigan, 1959.