APA (7th ed.) Zitazioa
Feldman, R. S. (2018). Development across the life span (8th ed.). Pearson.
Chicago Style (17th ed.) Zitazioa
Feldman, Robert S. Development Across the Life Span. 8th ed. Harlow, England: Pearson, 2018.
MLA (9th ed.) Zitazioa
Feldman, Robert S. Development Across the Life Span. 8th ed. Pearson, 2018.
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