APA (7th ed.) Zitazioa
Hurlock, E. B. (1980). Development psychology: A life span approach (5th ed.). Tata McGraw-Hill pub.
Chicago Style (17th ed.) Zitazioa
Hurlock, Elizabeth B. Development Psychology: A Life Span Approach. 5th ed. New Delhi: Tata McGraw-Hill pub, 1980.
MLA (9th ed.) Zitazioa
Hurlock, Elizabeth B. Development Psychology: A Life Span Approach. 5th ed. Tata McGraw-Hill pub, 1980.
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