APA Edition Citation

Salas, S. L., & Hille, E. (1990). Calculus: One and several variables (23.).

Chicago Edition Citation

Salas, S L., and Einar Hille. Calculus: One and Several Variables. 23. John Wiley & Sons Inc., New York, 1990.

MLA Edition Citation

Salas, S L., and Einar Hille. Calculus: One and Several Variables. 23. 1990.