APA (7th ed.) Citation

Bergman, S. (1941). Partial differential equations: Advanced topics. [publisher not identified].

Chicago Style (17th ed.) Citation

Bergman, Stefan. Partial Differential Equations: Advanced Topics. Providence, R.I.: [publisher not identified], 1941.

MLA (9th ed.) Citation

Bergman, Stefan. Partial Differential Equations: Advanced Topics. [publisher not identified], 1941.