APA (7th ed.) Citation

Boelkins, M., Austin, D., & Schlicker, S. (2017). Active Calculus 2.0. Grand Valley State University.

Chicago Style (17th ed.) Citation

Boelkins, Matt, David Austin, and Steve Schlicker. Active Calculus 2.0. [Place of publication not identified]: Grand Valley State University, 2017.

MLA (9th ed.) Citation

Boelkins, Matt, et al. Active Calculus 2.0. Grand Valley State University, 2017.