Παραπομπή APA

Hurlock, . E. B. (1972). Child development (5th ed.). McGraw-Hill.

Παραπομπή Chicago Style

Hurlock, Elizabeth B. Child Development. 5th ed. Tokyo: McGraw-Hill, 1972.

Παραπομπή MLA

Hurlock, Elizabeth B. Child Development. 5th ed. McGraw-Hill, 1972.