Lua APA (7ú heag.)

Pikunas, J. (1976). Human development, an emergent science (3d ed.). McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Pikunas, Justin. Human Development, an Emergent Science. 3d ed. New York: McGraw-Hill, 1976.

Lua MLA (8ú heag.)

Pikunas, Justin. Human Development, an Emergent Science. 3d ed. McGraw-Hill, 1976.

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