APA (7th ed.) Zitazioa

Manuel, F. E. (1968). A portrait of Isaac Newton. Harvard University.

Chicago Style (17th ed.) Zitazioa

Manuel, Frank E. A Portrait of Isaac Newton. Cambridge: Harvard University, 1968.

MLA (9th ed.) Zitazioa

Manuel, Frank E. A Portrait of Isaac Newton. Harvard University, 1968.