Dyfyniad APA

Whitehouse, A. G. J. (1971). The sky's the limit: A history of the U.S. airlines. Macmillan.

Dyfyniad Arddull Chicago

Whitehouse, Arthur George Joseph. The Sky's the Limit: A History of the U.S. Airlines. New York: Macmillan, 1971.

Dyfyniad MLA

Whitehouse, Arthur George Joseph. The Sky's the Limit: A History of the U.S. Airlines. Macmillan, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.