APA Edition Citation

Buck, R. C., & Willcox, A. B. (1971). Calculus of several variables.

Chicago Edition Citation

Buck, R. Creighton, and Alfred B. Willcox. Calculus of Several Variables. 1971.

MLA Edition Citation

Buck, R. Creighton, and Alfred B. Willcox. Calculus of Several Variables. 1971.

Warning: These citations may not always be 100% accurate.