Cita APA (7a ed.)

Marx, K. (1986). Karl Marx the essential writings. Westview Pr.

Cita Chicago Style (17a ed.)

Marx, Karl. Karl Marx the Essential Writings. Boulder: Westview Pr, 1986.

Cita MLA (9a ed.)

Marx, Karl. Karl Marx the Essential Writings. Westview Pr, 1986.