返回Google圖書搜尋

Experimental Study of the Relation Between Intermittent and Nonintermittent Sector-wheel Photographic Exposures

出版	U.S. Department of Commerce, Bureau of Standards, 1926
URL	http://books.google.com.hk/books?id=c1tJ6XfHl50C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN