APA (7th ed.) Citation

Ahnstrom, D. N. (1954). The complete book of helicopters ([1st ed.].). World Pub. Co..

Chicago Style (17th ed.) Citation

Ahnstrom, D. N. The Complete Book of Helicopters. [1st ed.]. Cleveland: World Pub. Co., 1954.

MLA (9th ed.) Citation

Ahnstrom, D. N. The Complete Book of Helicopters. [1st ed.]. World Pub. Co., 1954.

Warning: These citations may not always be 100% accurate.