APA (7th ed.) Citation

Proudhon, P. System of Economical Contradictions; Or, The Philosophy of Misery.

Chicago Style (17th ed.) Citation

Proudhon, P.-J. System of Economical Contradictions; Or, The Philosophy of Misery.

MLA (9th ed.) Citation

Proudhon, P.-J. System of Economical Contradictions; Or, The Philosophy of Misery.

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