APA-referens (7:e uppl.)

Williamson, R. E. (1968). Calculus of vector functions (2nd ed.). Prentice-Hall.

Chicago-referens (17:e uppl.)

Williamson, Richard E. Calculus of Vector Functions. 2nd ed. New Jersey: Prentice-Hall, 1968.

MLA-referens (9:e uppl.)

Williamson, Richard E. Calculus of Vector Functions. 2nd ed. Prentice-Hall, 1968.