Citação norma APA

Martindale, C. C. (1937). The difficult commandment: Notes on self-control especially for young men (9th ed.). P.J. Kennedy & Sons.

Citação norma Chicago

Martindale, C. C. The Difficult Commandment: Notes on Self-control Especially for Young Men. 9th ed. New York: P.J. Kennedy & Sons, 1937.

Citação norma MLA

Martindale, C. C. The Difficult Commandment: Notes on Self-control Especially for Young Men. 9th ed. P.J. Kennedy & Sons, 1937.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.