APA citiranje

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

Trích dẫn kiểu Chicago

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

MLA citiranje

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