Gardner, M. (2001). Gardner's workout: Training the mind and entertaining the spirit. A.K Peters.
استشهاد بنمط شيكاغوGardner, Martin. Gardner's Workout: Training the Mind and Entertaining the Spirit. Natick, Mass.: A.K Peters, 2001.
MLA استشهادGardner, Martin. Gardner's Workout: Training the Mind and Entertaining the Spirit. A.K Peters, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.