Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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