APA stil citiranja

Casper, L. (1960). Robert Penn Warren: Robert Penn Warren : the dark and bloody ground. Seattle: University of washington Press.

Chicago stil citiranja

Casper, Leonard. Robert Penn Warren: Robert Penn Warren : the dark and bloody ground. Seattle: University of washington Press, 1960.

MLA stil citiranja

Casper, Leonard. Robert Penn Warren: Robert Penn Warren : the dark and bloody ground. Seattle: University of washington Press, 1960.