Cita APA (7th ed.)

Kammerer, P. G. (1969). The unmarried mother: A study of five hundred cases. Patterson Smith.

Cita Chicago (17th ed.)

Kammerer, Percy Gamble. The Unmarried Mother: A Study of Five Hundred Cases. Montclair, N.J.: Patterson Smith, 1969.

Cita MLA (8th ed.)

Kammerer, Percy Gamble. The Unmarried Mother: A Study of Five Hundred Cases. Patterson Smith, 1969.