APA-referens (7:e uppl.)

Keillor, G. (2005). Good poems for hard times. Penguin books.

Chicago-referens (17:e uppl.)

Keillor, Garrison. Good Poems for Hard Times. New York: Penguin books, 2005.

MLA-referens (9:e uppl.)

Keillor, Garrison. Good Poems for Hard Times. Penguin books, 2005.