APA

Pitter Ruth, . (1953). The ermine. London: Cresset Press.

Chicago

Pitter Ruth, . 1953. The ermine. London: Cresset Press.

Harvard

Pitter Ruth, . (1953). The ermine. London: Cresset Press.

MLA

Pitter Ruth, . The ermine. London: Cresset Press. 1953.