APA (7th ed.) Citation

Tikhonov, A. N., & Samarski, A. A. (1967). Partial differential equations of mathematical physics. Holden-Day.

Chicago Style (17th ed.) Citation

Tikhonov, A. N., and A. A. Samarski. Partial Differential Equations of Mathematical Physics. San Francisco: Holden-Day, 1967.

MLA (9th ed.) Citation

Tikhonov, A. N., and A. A. Samarski. Partial Differential Equations of Mathematical Physics. Holden-Day, 1967.