APA

Cheek P. M., . (2005). The American option. New York: Brick Tower Press.

Chicago

Cheek Philip Morgan, . 2005. The American option. New York: Brick Tower Press.

Harvard

Cheek P. M., . (2005). The American option. New York: Brick Tower Press.

MLA

Cheek Philip Morgan, . The American option. New York: Brick Tower Press. 2005.