APA (7e ed.) Bronvermelding

Widder, D. V. (1989). Advanced Calculus (2nd ed.). Modern Book Centre.

Chicago (17e ed.) Bronvermelding

Widder, D. V. Advanced Calculus. 2nd ed. Englewood Cliffs: Modern Book Centre, 1989.

MLA (9e ed.) Bronvermelding

Widder, D. V. Advanced Calculus. 2nd ed. Modern Book Centre, 1989.