登入
選單
返回
Google圖書搜尋
A Rapid Method for Projecting and Measuring Cross Sections of Wool Fibers
James Okley Grandstaff
Walter Louis Hodde
出版
U.S. Department of Agriculture
, 1940
URL
http://books.google.com.hk/books?id=Qq53pV54kRkC&hl=&source=gbs_api