APA (7th ed.) Zitazioa

Troutman, P. (1963). El Greco. Spring Books.

Chicago Style (17th ed.) Zitazioa

Troutman, Philip. El Greco. Londres: Spring Books, 1963.

MLA (9th ed.) Zitazioa

Troutman, Philip. El Greco. Spring Books, 1963.