APA (7th ed.) Citation
Berg, P. W., & McGregor, J. L. (1969). Elementary partial differential equations (3a reimp.). Holden-Day.
Chicago Style (17th ed.) Citation
Berg, Paul W., and James L. McGregor. Elementary Partial Differential Equations. 3a reimp. San Francisco: Holden-Day, 1969.
MLA (9th ed.) Citation
Berg, Paul W., and James L. McGregor. Elementary Partial Differential Equations. 3a reimp. Holden-Day, 1969.
Warning: These citations may not always be 100% accurate.