Cita APA (7th ed.)

Chicago University. Department of Mathematics. (1933). Contributions to the calculus of variations. (1933-1937). The University of Chicago.

Cita Chicago (17th ed.)

Chicago University. Department of Mathematics. Contributions to the Calculus of Variations. (1933-1937). Chicago: The University of Chicago, 1933.

Cita MLA (9th ed.)

Chicago University. Department of Mathematics. Contributions to the Calculus of Variations. (1933-1937). The University of Chicago, 1933.

Atenció: Aquestes cites poden no estar 100% correctes.