Cita APA (7th ed.)

Hullfish, H. G., & Smith, P. G. (1961). Reflective thinking: The method of education. Dodd, Mead.

Cita Chicago (17th ed.)

Hullfish, Henry Gordon, i Philip G. Smith. Reflective Thinking: The Method of Education. New York: Dodd, Mead, 1961.

Cita MLA (9th ed.)

Hullfish, Henry Gordon, i Philip G. Smith. Reflective Thinking: The Method of Education. Dodd, Mead, 1961.