APA (7th ed.) Citation

Frank, P. (1961). The validation of scientific theories (1st Collier Books ed.). Collier.

Chicago Style (17th ed.) Citation

Frank, Philipp. The Validation of Scientific Theories. 1st Collier Books ed. New York: Collier, 1961.

MLA (9th ed.) Citation

Frank, Philipp. The Validation of Scientific Theories. 1st Collier Books ed. Collier, 1961.

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