APA
Benjamin Z., . (1948). Emotional problems of childhood. London: University of London Press.
Chicago
Benjamin Zoe, . 1948. Emotional problems of childhood. London: University of London Press.
Harvard
Benjamin Z., . (1948). Emotional problems of childhood. London: University of London Press.
MLA
Benjamin Zoe, . Emotional problems of childhood. London: University of London Press. 1948.