Cita APA

Schouten, J. A. 1., & Kulk, W. v. d. (1949). Pfaff's problem and its generalizations. Clarendon Press.

Citación estilo Chicago

Schouten, J. A. 1883-, and W. van der Kulk. Pfaff's Problem and Its Generalizations. Oxford: Clarendon Press, 1949.

Cita MLA

Schouten, J. A. 1883-, and W. van der Kulk. Pfaff's Problem and Its Generalizations. Oxford: Clarendon Press, 1949.