Παραπομπή σε μορφή APA (7η εκδ.)

Hempel, J. (1983). Intersection calculus on surfaces with applications to 3-manifolds. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hempel, John. Intersection Calculus on Surfaces with Applications to 3-manifolds. Providence, R.I., USA: American Mathematical Society, 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hempel, John. Intersection Calculus on Surfaces with Applications to 3-manifolds. American Mathematical Society, 1983.