Cita APA (7a ed.)

Fromm, E. (1961). Marx's Concept of Man. Frederick Ungar.

Cita Chicago Style (17a ed.)

Fromm, Erich. Marx's Concept of Man. Nueva York: Frederick Ungar, 1961.

Cita MLA (8a ed.)

Fromm, Erich. Marx's Concept of Man. Frederick Ungar, 1961.