APA (7th ed.) Citation

Bruyn, L. l., Van den Bergh, M., & Van Oystaeyen, F. (1988). Graded orders. Boston, MA u.a.

Chicago Style (17th ed.) Citation

Bruyn, Lieven le, Michel Van den Bergh, and Freddy Van Oystaeyen. Graded Orders. Boston, MA u.a: Boston, MA u.a, 1988.

MLA (9th ed.) Citation

Bruyn, Lieven le, et al. Graded Orders. Boston, MA u.a, 1988.