APA stil citiranja

Clough, W. O. (1964). The Necessary Earth: The Necessary Earth : nature and solitude in American literature. Austin: University of Texas Press.

Chicago stil citiranja

Clough, Wilson O. The Necessary Earth: The Necessary Earth : nature and solitude in American literature. Austin: University of Texas Press, 1964.

MLA stil citiranja

Clough, Wilson O. The Necessary Earth: The Necessary Earth : nature and solitude in American literature. Austin: University of Texas Press, 1964.