Ignacio, G. P. (1971). An achievement test in English for grade one Waray learners. s.n.].
Chicago Style aipamenaIgnacio, Gregoria Pedere. An Achievement Test in English for Grade One Waray Learners. [Quezon City: s.n.], 1971.
MLA aipamenaIgnacio, Gregoria Pedere. An Achievement Test in English for Grade One Waray Learners. s.n.], 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.