Lua APA (7ú heag.)

PIKUNAS JUSTIN. (1969). HUMAN DEVELOPMENT AN ENGERGENT SCIENCE (3RD.). MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

PIKUNAS JUSTIN. HUMAN DEVELOPMENT AN ENGERGENT SCIENCE. 3RD. TOKYO: MCGRAW-HILL, 1969.

Lua MLA (9ú heag.)

PIKUNAS JUSTIN. HUMAN DEVELOPMENT AN ENGERGENT SCIENCE. 3RD. MCGRAW-HILL, 1969.

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