APA (7th ed.) Citation

Davis, H. T. (1931). Philosophy and modern science / by H.T. Davis. Principia.

Chicago Style (17th ed.) Citation

Davis, H. T. Philosophy and Modern Science / by H.T. Davis. Principia, 1931.

MLA (9th ed.) Citation

Davis, H. T. Philosophy and Modern Science / by H.T. Davis. Principia, 1931.

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