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.].
Citace podle Chicago (17th ed.)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.
Citace podle MLA (9th ed.)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.
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