APA-referens (7:e uppl.)

CHRISTOPHERSON, R. W., & HOBBS, G. L. (1998). Applied physical geography geosystems in the laboratory.-- Ed.2. Prentice Hall.

Chicago-referens (17:e uppl.)

CHRISTOPHERSON, Robert W., och Gail Lewis HOBBS. Applied Physical Geography Geosystems in the Laboratory.-- Ed.2. New Jersey: Prentice Hall, 1998.

MLA-referens (9:e uppl.)

CHRISTOPHERSON, Robert W., och Gail Lewis HOBBS. Applied Physical Geography Geosystems in the Laboratory.-- Ed.2. Prentice Hall, 1998.