APA (7th ed.) Citation

Relgis , E., & Ishill , J. (1972). The principles of humanism. La Escuela moderna.

Chicago Style (17th ed.) Citation

Relgis , Eugen, and Joseph Ishill. The Principles of Humanism. La Escuela moderna, 1972.

MLA (8th ed.) Citation

Relgis , Eugen, and Joseph Ishill. The Principles of Humanism. La Escuela moderna, 1972.

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