Παραπομπή APA

Courant, R., & Hilbert, D. (1975). Methods of mathematical physics. Wiley Eastern.

Παραπομπή Chicago Style

Courant, R., και D. Hilbert. Methods of Mathematical Physics. New Delhi: Wiley Eastern, 1975.

Παραπομπή MLA

Courant, R., και D. Hilbert. Methods of Mathematical Physics. Wiley Eastern, 1975.