APA (7th ed.) Citation
Friedman, B. (1950). Techniques in solving partial differential equations. s.f..
Chicago Style (17th ed.) Citation
Friedman, Bernard. Techniques in Solving Partial Differential Equations. s.f.: s.f., 1950.
MLA (9th ed.) Citation
Friedman, Bernard. Techniques in Solving Partial Differential Equations. s.f., 1950.
Warning: These citations may not always be 100% accurate.