APA (7th ed.) Citation

MARX, K. (1974). Cartas a Kugelmann. Península.

Chicago Style (17th ed.) Citation

MARX, Karl. Cartas a Kugelmann. Barcelona: Península, 1974.

MLA (9th ed.) Citation

MARX, Karl. Cartas a Kugelmann. Península, 1974.

Warning: These citations may not always be 100% accurate.