Cita APA (7a ed.)

Berg, P. W., & McGregor, J. L. (1966). Elementary partial differential equations. McGraw-Hill.

Cita Chicago Style (17a ed.)

Berg, Paul W., y James L. McGregor. Elementary Partial Differential Equations. New York: McGraw-Hill, 1966.

Cita MLA (8a ed.)

Berg, Paul W., y James L. McGregor. Elementary Partial Differential Equations. McGraw-Hill, 1966.