Cita APA (7th ed.)

Dreikurs, R. (1958). The challenge of parenthood. Hawthorn Books.

Cita Chicago (17th ed.)

Dreikurs, Rudolf. The Challenge of Parenthood. New York: Hawthorn Books, 1958.

Cita MLA (9th ed.)

Dreikurs, Rudolf. The Challenge of Parenthood. Hawthorn Books, 1958.