APA (7th ed.) Citation

Eberlein, P. (1979). Surfaces of nonpositive curvature. American Mathematical Society.

Chicago Style (17th ed.) Citation

Eberlein, Patrick. Surfaces of Nonpositive Curvature. Providence, Rhode Island, U.S.A: American Mathematical Society, 1979.

MLA (9th ed.) Citation

Eberlein, Patrick. Surfaces of Nonpositive Curvature. American Mathematical Society, 1979.