Lua APA (7ú heag.)

Leff, H. (1978). Experience, environment & human potentials. Oxford uni.press.

Lua i Stíl Chicago (17ú heag.)

Leff, Herbert. Experience, Environment & Human Potentials. New York: Oxford uni.press, 1978.

Lua MLA (9ú heag.)

Leff, Herbert. Experience, Environment & Human Potentials. Oxford uni.press, 1978.

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