(1972). Southeast Asian Ministers of Education Organization, Regional English Language Centre, Singapore: Program of Activities, 1972-1976.
Citazione stile Chigago Style (17a edizione)Southeast Asian Ministers of Education Organization, Regional English Language Centre, Singapore: Program of Activities, 1972-1976. 1972.
Citatione MLA (9a ed.)Southeast Asian Ministers of Education Organization, Regional English Language Centre, Singapore: Program of Activities, 1972-1976. 1972.
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