APA-viite (7. p.)
Ward, A. (1996). Preparation PET and practice with answers (1a. ed.). Oxford University Press.
Chicago-viite (17. p.)
Ward, Ann. Preparation PET and Practice with Answers. 1a. ed. Oxford: Oxford University Press, 1996.
MLA-viite (9. p.)
Ward, Ann. Preparation PET and Practice with Answers. 1a. ed. Oxford University Press, 1996.
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