APA (7th ed.) Citation

Abraham, P., Rolland, R., Ferrière, A., & Häberlin, H. (1969). Romain Rolland. La Baconnière.

Chicago Style (17th ed.) Citation

Abraham, Pierre, Romain Rolland, Adolphe Ferrière, and Heinrich Häberlin. Romain Rolland. Neuchâtel: La Baconnière, 1969.

MLA (9th ed.) Citation

Abraham, Pierre, et al. Romain Rolland. La Baconnière, 1969.

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