APA (7th ed.) Citation

Descartes, R. (1978). Principios da filosofia. Guimarães.

Chicago Style (17th ed.) Citation

Descartes, René. Principios Da Filosofia. Guimarães, 1978.

MLA (8th ed.) Citation

Descartes, René. Principios Da Filosofia. Guimarães, 1978.

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