Citazione Stile APA (7a Edizione)

Castillo, N. C. (1972). Proposed instructional materials in the teaching of reported speech to fourth year high school students. s.n.].

Citazione stile Chigago Style (17a edizione)

Castillo, Norma Capalungan. Proposed Instructional Materials in the Teaching of Reported Speech to Fourth Year High School Students. [Quezon City: s.n.], 1972.

Citatione MLA (9a ed.)

Castillo, Norma Capalungan. Proposed Instructional Materials in the Teaching of Reported Speech to Fourth Year High School Students. s.n.], 1972.