APA
Strang R., . (1959). Introduction to child study. New York: Macmillan Publishing Company.
Chicago
Strang Ruth, . 1959. Introduction to child study. New York: Macmillan Publishing Company.
Harvard
Strang R., . (1959). Introduction to child study. New York: Macmillan Publishing Company.
MLA
Strang Ruth, . Introduction to child study. New York: Macmillan Publishing Company. 1959.