Dyfyniad APA

Pili, I. B. (1973). A survey of completed descriptive and contrastive researches on teaching English as a second language from 1959 to 1971. s.n.].

Dyfyniad Arddull Chicago

Pili, Irene B. A Survey of Completed Descriptive and Contrastive Researches on Teaching English as a Second Language from 1959 to 1971. [Quezon City: s.n.], 1973.

Dyfyniad MLA

Pili, Irene B. A Survey of Completed Descriptive and Contrastive Researches on Teaching English as a Second Language from 1959 to 1971. s.n.], 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.