William R Slager. (1966). English for today; T4: Our changing world. New York: McGraw-Hill.
Chicago Style aipamenaWilliam R Slager. English for Today; T4: Our Changing World. New York: McGraw-Hill, 1966.
MLA aipamenaWilliam R Slager. English for Today; T4: Our Changing World. New York: McGraw-Hill, 1966.
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