APA (7th ed.) Zitazioa

Butler, I. S. (1971). Relevant Problems for chemical principles. W.A. Benjamin.

Chicago Style (17th ed.) Zitazioa

Butler, Ian S. Relevant Problems for Chemical Principles. California: W.A. Benjamin, 1971.

MLA (9th ed.) Zitazioa

Butler, Ian S. Relevant Problems for Chemical Principles. W.A. Benjamin, 1971.