APA
Fromm E., . (1968). The heart of man. New York: Harper & Row.
Chicago
Fromm Erich, . 1968. The heart of man. New York: Harper & Row.
Harvard
Fromm E., . (1968). The heart of man. New York: Harper & Row.
MLA
Fromm Erich, . The heart of man. New York: Harper & Row. 1968.