Cita APA (7th ed.)

Fromm, E. (1966). Marx's concept of man. Frederick Ungar.

Cita Chicago (17th ed.)

Fromm, Erich. Marx's Concept of Man. New York: Frederick Ungar, 1966.

Cita MLA (9th ed.)

Fromm, Erich. Marx's Concept of Man. Frederick Ungar, 1966.