Cita APA (7a ed.)

Friedl, A. E. (1972). Teaching science to children: The inquiry approach applied. Random House.

Cita Chicago Style (17a ed.)

Friedl, Alfred E. Teaching Science to Children: The Inquiry Approach Applied. New York: Random House, 1972.

Cita MLA (8a ed.)

Friedl, Alfred E. Teaching Science to Children: The Inquiry Approach Applied. Random House, 1972.