Cita APA (7a ed.)

Hadley, G., & Kemp, M. C. (1971). Variational methods in economics. North-Holland Pub. Co.; American Elsevier Pub. Co..

Cita Chicago Style (17a ed.)

Hadley, G., y Murray C. Kemp. Variational Methods in Economics. Amsterdam, New York: North-Holland Pub. Co.; American Elsevier Pub. Co., 1971.

Cita MLA (8a ed.)

Hadley, G., y Murray C. Kemp. Variational Methods in Economics. North-Holland Pub. Co.; American Elsevier Pub. Co., 1971.