APA
Hurlock e. B., . (1956). Child development. New York: Mcgraw- hill Book Company.
Chicago
Hurlock elizbeth B, . 1956. Child development. New York: Mcgraw- hill Book Company.
Harvard
Hurlock e. B., . (1956). Child development. New York: Mcgraw- hill Book Company.
MLA
Hurlock elizbeth B, . Child development. New York: Mcgraw- hill Book Company. 1956.