APA (7th ed.) Citation

Tychonov, A. N., & Samarskii, A. A. Partial differential equations of mathematical physics. Holden - Day, inc.

Chicago Style (17th ed.) Citation

Tychonov, A. N., and A. A. Samarskii. Partial Differential Equations of Mathematical Physics. San Fransisco: Holden - Day, inc.

MLA (8th ed.) Citation

Tychonov, A. N., and A. A. Samarskii. Partial Differential Equations of Mathematical Physics. Holden - Day, inc.