APA-referens (7:e uppl.)

Winston, B. J. (1991). Geography: Our country and our world. Scott, Foresman and Co..

Chicago-referens (17:e uppl.)

Winston, Barbara J. Geography: Our Country and Our World. Glenview: Scott, Foresman and Co., 1991.

MLA-referens (9:e uppl.)

Winston, Barbara J. Geography: Our Country and Our World. Scott, Foresman and Co., 1991.