Παραπομπή σε μορφή APA (7η εκδ.)

Klingenberg, W. (1983). Closed geodesics on riemannian manifolds. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Klingenberg, Wilhelm. Closed Geodesics on Riemannian Manifolds. Rhode island: American Mathematical Society, 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Klingenberg, Wilhelm. Closed Geodesics on Riemannian Manifolds. American Mathematical Society, 1983.