APA-referens (7:e uppl.)

Williamson, R. E., Crowell, R. H., & Trotter, H. F. (1972). Calculus of vector functions (3d ed.). Prentice-Hall.

Chicago-referens (17:e uppl.)

Williamson, Richard E., Richard H. Crowell, och Hale F. Trotter. Calculus of Vector Functions. 3d ed. Englewood Cliffs, N.J.: Prentice-Hall, 1972.

MLA-referens (9:e uppl.)

Williamson, Richard E., et al. Calculus of Vector Functions. 3d ed. Prentice-Hall, 1972.