Bobrow, J., & Covino, W. A. (1989). Cliffs graduate management admission test: Preparation guide. Cliffs Notes.
Citace podle Chicago (17th ed.)Bobrow, Jerry, a William A. Covino. Cliffs Graduate Management Admission Test: Preparation Guide. Lincoln, Neb: Cliffs Notes, 1989.
Citace podle MLA (9th ed.)Bobrow, Jerry, a William A. Covino. Cliffs Graduate Management Admission Test: Preparation Guide. Cliffs Notes, 1989.
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