APA (7th ed.) Citation

Poincaré, H. (1958). The value of science / by H. Poincare. Dover publications.

Chicago Style (17th ed.) Citation

Poincaré, Henri. The Value of Science / by H. Poincare. Dover publications, 1958.

MLA (9th ed.) Citation

Poincaré, Henri. The Value of Science / by H. Poincare. Dover publications, 1958.

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