APA (7th ed.) Citation

Howson, C., & Laudan, L. (1977). Method and appraisal in the physical sciences. Science, 196, 517.

Chicago Style (17th ed.) Citation

Howson, C., and L. Laudan. "Method and Appraisal in the Physical Sciences." Science 196 (1977): 517.

MLA (9th ed.) Citation

Howson, C., and L. Laudan. "Method and Appraisal in the Physical Sciences." Science, vol. 196, 1977, p. 517.

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