(1981). Pulse Echo Ulttrasound Imaging Systems: Performance Tests and Criteria. American Institute of physics.
استشهاد بنمط شيكاغوPulse Echo Ulttrasound Imaging Systems: Performance Tests and Criteria. New York: American Institute of physics, 1981.
MLA استشهادPulse Echo Ulttrasound Imaging Systems: Performance Tests and Criteria. American Institute of physics, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.