APA (7th ed.) Citation

Postnikov, M. (1967). The variational theory of geodesics. Dover Publications, Inc.

Chicago Style (17th ed.) Citation

Postnikov, M.M. The Variational Theory of Geodesics. New York: Dover Publications, Inc, 1967.

MLA (8th ed.) Citation

Postnikov, M.M. The Variational Theory of Geodesics. Dover Publications, Inc, 1967.

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