Cita APA (7a ed.)

Newton, I., Huygens, C., Motte, A., Cajori, F., & Thompson, S. P. (1952). Mathematical principles of natural philosophy. Encyclopaedia Britannica.

Cita Chicago Style (17a ed.)

Newton, Isaac, Christiaan Huygens, Andrew Motte, Florian Cajori, y Silvanus Phillips Thompson. Mathematical Principles of Natural Philosophy. Chicago: Encyclopaedia Britannica, 1952.

Cita MLA (8a ed.)

Newton, Isaac, et al. Mathematical Principles of Natural Philosophy. Encyclopaedia Britannica, 1952.