Cita APA

Marx,Karl, & Engels,Frederick. (1969). Selected works in three volumes. Progress.

Chicago Edition Citation

Marx,Karl, i Engels,Frederick. Selected Works in Three Volumes. Moscow: Progress, 1969.

Cita MLA

Marx,Karl, i Engels,Frederick. Selected Works in Three Volumes. Progress, 1969.

Atenció: Aquestes cites poden no estar 100% correctes.