Waters, M., & Waters, A. Study tasks in english student's book (Student Ed edition.).
Chicago Style (17th ed.) CitationWaters, Mary, and Alan Waters. Study Tasks in English Student's Book. Student Ed edition. Cambridge University Pres.
MLA (8th ed.) CitationWaters, Mary, and Alan Waters. Study Tasks in English Student's Book. Student Ed edition.
Warning: These citations may not always be 100% accurate.