Citace podle APA (7th ed.)

YORKEY, R. C. (1970). Study skills for students of english as a second language. McGraw-Hill Book.

Citace podle Chicago (17th ed.)

YORKEY, Richard C. Study Skills for Students of English as a Second Language. New York: McGraw-Hill Book, 1970.

Citace podle MLA (9th ed.)

YORKEY, Richard C. Study Skills for Students of English as a Second Language. McGraw-Hill Book, 1970.

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