Cita APA (7a ed.)

Marx, K., & Engels, F. (1977). Marx & Engels Collected Works Vol 09: Marx and Engels:1849. Lawrence & Wishart.

Cita Chicago Style (17a ed.)

Marx, Karl, y Friedrich Engels. Marx & Engels Collected Works Vol 09: Marx and Engels:1849. London [England]: Lawrence & Wishart, 1977.

Cita MLA (8a ed.)

Marx, Karl, y Friedrich Engels. Marx & Engels Collected Works Vol 09: Marx and Engels:1849. Lawrence & Wishart, 1977.