Singson, A. B. (1973). Instructional materials in teaching English verb tenses and aspects to Ilocano learners. [s.n.].
Citación estilo ChicagoSingson, Antonia B. Instructional Materials in Teaching English Verb Tenses and Aspects to Ilocano Learners. Quezon City: [s.n.], 1973.
Cita MLASingson, Antonia B. Instructional Materials in Teaching English Verb Tenses and Aspects to Ilocano Learners. [s.n.], 1973.
Warning: These citations may not always be 100% accurate.