APA (7th ed.) Citation

Heine, H., Mehring, F., & Cogniot, G. Pages choisies. Editions sociales (Paris).

Chicago Style (17th ed.) Citation

Heine, Heinrich, Franz Mehring, and Georges Cogniot. Pages Choisies. Editions sociales (Paris).

MLA (8th ed.) Citation

Heine, Heinrich, et al. Pages Choisies. Editions sociales (Paris).