APA (7th ed.) Zitazioa
Epstein, E. (1970). Polítics and education in Puerto Rico: A documentary survey of the languaje issue.
Chicago Style (17th ed.) Zitazioa
Epstein, Erwin. Polítics and Education in Puerto Rico: A Documentary Survey of the Languaje Issue. 1970.
MLA (9th ed.) Zitazioa
Epstein, Erwin. Polítics and Education in Puerto Rico: A Documentary Survey of the Languaje Issue. 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.