APA (7th ed.) Citation

Whewell, W., & Butts, R. E. (1989). Theory of scientific method. Hackett Publishing Company.

Chicago Style (17th ed.) Citation

Whewell, William, and Robert E. Butts. Theory of Scientific Method. Indianapolis: Hackett Publishing Company, 1989.

MLA (8th ed.) Citation

Whewell, William, and Robert E. Butts. Theory of Scientific Method. Hackett Publishing Company, 1989.