Cita APA (7a ed.)

Riazanov, D. (1975). Marx-Engels. Alberto Corazón.

Cita Chicago Style (17a ed.)

Riazanov, D. Marx-Engels. Madrid: Alberto Corazón, 1975.

Cita MLA (8a ed.)

Riazanov, D. Marx-Engels. Alberto Corazón, 1975.