APA (7th ed.) Citation

Ekeland, I. (1990). Convexity Methods in Hamiltonian Mechanics. Springer Berlin Heidelberg.

Chicago Style (17th ed.) Citation

Ekeland, Ivar. Convexity Methods in Hamiltonian Mechanics. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990.

MLA (9th ed.) Citation

Ekeland, Ivar. Convexity Methods in Hamiltonian Mechanics. Springer Berlin Heidelberg, 1990.