APA (7th ed.) Citation

Singson, A. B. (1973). Instructional materials in teaching English verb tenses and aspects to Ilocano learners. [s.n.].

Chicago Style (17th ed.) Citation

Singson, Antonia B. Instructional Materials in Teaching English Verb Tenses and Aspects to Ilocano Learners. Quezon City: [s.n.], 1973.

MLA (9th ed.) Citation

Singson, Antonia B. Instructional Materials in Teaching English Verb Tenses and Aspects to Ilocano Learners. [s.n.], 1973.