Lua APA (7ú heag.)

Berk, L. E. (1999). Infants, children, and adolescents (3rd ed.). Allyn and Bacon.

Lua i Stíl Chicago (17ú heag.)

Berk, Laura E. Infants, Children, and Adolescents. 3rd ed. Boston: Allyn and Bacon, 1999.

Lua MLA (9ú heag.)

Berk, Laura E. Infants, Children, and Adolescents. 3rd ed. Allyn and Bacon, 1999.

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