APA aipamena

Hurlock, E. B. (1980). Development psychology: Alife-span approach (5th. ed.). Mc Graw Hill.

Chicago Style aipamena

Hurlock, Elizabeth B. Development Psychology: Alife-span Approach. 5th. ed. Mc Graw Hill, 1980.

MLA aipamena

Hurlock, Elizabeth B. Development Psychology: Alife-span Approach. 5th. ed. Mc Graw Hill, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.