Cita APA (7a ed.)

Valadian, I., & Porter, D. (1977). Physical growth and development: From conception to maturity. Little, Brown.

Cita Chicago Style (17a ed.)

Valadian, Isabelle, y Douglas Porter. Physical Growth and Development: From Conception to Maturity. Boston: Little, Brown, 1977.

Cita MLA (9a ed.)

Valadian, Isabelle, y Douglas Porter. Physical Growth and Development: From Conception to Maturity. Little, Brown, 1977.