Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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