(1998). Word power. National Text Book.
Chicago Style aipamenaWord Power. National Text Book, 1998.
MLA aipamenaWord Power. National Text Book, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(1998). Word power. National Text Book.
Chicago Style aipamenaWord Power. National Text Book, 1998.
MLA aipamenaWord Power. National Text Book, 1998.