APA (7th ed.) Zitazioa

(1973). The Methodological unity of science. D.Reidel.

Chicago Style (17th ed.) Zitazioa

The Methodological Unity of Science. Dordrecht-Holland: D.Reidel, 1973.

MLA (9th ed.) Zitazioa

The Methodological Unity of Science. D.Reidel, 1973.