APA

YORKEY R. C., . (1982). STUDY SKILLS FOR STUDENTS OF ENGLISH. New York: MCGRAW - HILL.

Chicago

YORKEY RICHARD C, . 1982. STUDY SKILLS FOR STUDENTS OF ENGLISH. New York: MCGRAW - HILL.

Harvard

YORKEY R. C., . (1982). STUDY SKILLS FOR STUDENTS OF ENGLISH. New York: MCGRAW - HILL.

MLA

YORKEY RICHARD C, . STUDY SKILLS FOR STUDENTS OF ENGLISH. New York: MCGRAW - HILL. 1982.