APA (7th ed.) Citation

Descartes, R., Adam, C., Tannery, P., & Gouhier, H. G. (1930). Regulae ad directionem ingenii. Librairire philosophique J. Vrin.

Chicago Style (17th ed.) Citation

Descartes, René, Charles Adam, Paul Tannery, and Henri Gaston Gouhier. Regulae Ad Directionem Ingenii. Paris: Librairire philosophique J. Vrin, 1930.

MLA (9th ed.) Citation

Descartes, René, et al. Regulae Ad Directionem Ingenii. Librairire philosophique J. Vrin, 1930.