APA aipamena

Giaquinta, M., & Hildebrandt, S. (1996). Calculus of variations 1. Springer.

Chicago Style aipamena

Giaquinta, Mariano, and Stefan Hildebrandt. Calculus of Variations 1. Berlin ; New York: Springer, 1996.

MLA aipamena

Giaquinta, Mariano, and Stefan Hildebrandt. Calculus of Variations 1. Springer, 1996.