Riddle, J. T. E., Nicoll, K. B., & Alexander, M. F. (1989). The skeletal system and the muscular system: 500 questions and answers for self-assessment. Churchill Livingstone.
Παραπομπή σε μορφή Chicago (17η εκδ.)Riddle, Janet T. E., Kathleen B. Nicoll, και Margaret F. Alexander. The Skeletal System and the Muscular System: 500 Questions and Answers for Self-assessment. Edinburgh: Churchill Livingstone, 1989.
Παραπομπή σε μορφή MLA (8th εκδ.)Riddle, Janet T. E., et al. The Skeletal System and the Muscular System: 500 Questions and Answers for Self-assessment. Churchill Livingstone, 1989.
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