Castillo, N. C. (1972). Proposed instructional materials in the teaching of reported speech to fourth year high school students. s.n.].
Chicago Style (17. basım) AtıfCastillo, Norma Capalungan. Proposed Instructional Materials in the Teaching of Reported Speech to Fourth Year High School Students. [Quezon City: s.n.], 1972.
MLA (9th ed.) AtıfCastillo, Norma Capalungan. Proposed Instructional Materials in the Teaching of Reported Speech to Fourth Year High School Students. s.n.], 1972.
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