Cita APA (7a ed.)

McCarthy Jr., J. J., Martin, M. C., & Gildenhorn, M. (1980). The sympto-thermal method: An instruction program with charts and text. The Human Life and Natural Family Planning Foundation.

Cita Chicago Style (17a ed.)

McCarthy Jr., John J., Mary Catherine Martin, y Marjorie Gildenhorn. The Sympto-thermal Method: An Instruction Program with Charts and Text. Washington, D.C.: The Human Life and Natural Family Planning Foundation, 1980.

Cita MLA (9a ed.)

McCarthy Jr., John J., et al. The Sympto-thermal Method: An Instruction Program with Charts and Text. The Human Life and Natural Family Planning Foundation, 1980.