Eastwood, B. (1979). Directory of audio-visual sources: History of science, medicine, and technology. Science History Publications.
芝加哥风格引文Eastwood, Bruce. Directory of Audio-visual Sources: History of Science, Medicine, and Technology. New York: Science History Publications, 1979.
MLA引文Eastwood, Bruce. Directory of Audio-visual Sources: History of Science, Medicine, and Technology. Science History Publications, 1979.
警告：这些引文格式不一定是100％准确.