Download or read book List of Sires Proved in Dairy Herd Improvement Associations, 1943 written by Betty Thomas Richardson and published by . This book was released on 1943 with total page 2312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This summary, together with the one on farm crops, by the use of maps and supplementary charts, portrays the quantitative and geographic significance of production of the Nation's food supply.