APA-referens (7:e uppl.)

Gibson, C. (1966). Spain in America ([1st ed.].). Harper & Row.

Chicago-referens (17:e uppl.)

Gibson, Charles. Spain in America. [1st ed.]. New York: Harper & Row, 1966.

MLA-referens (9:e uppl.)

Gibson, Charles. Spain in America. [1st ed.]. Harper & Row, 1966.