Cita APA (7a ed.)

Verboomen, G., Feys, B., & Hidalgo, M. S. (2016). Karl Marx. 50Minutes.es.

Cita Chicago Style (17a ed.)

Verboomen, Gabriel, Brigitte Feys, y Marta Sánchez Hidalgo. Karl Marx. [Place of publication not identified]: 50Minutes.es, 2016.

Cita MLA (8a ed.)

Verboomen, Gabriel, et al. Karl Marx. 50Minutes.es, 2016.