00451nam a22001577a 4500 6616 6616 200304b ||||| |||| 00| 0 eng d 0-7167-0825-6 630 MCD MCDOWELL,r.e Improvement of livestock production in warm climates R. E McDowell English San francisco W.H FREEMAN 1972 X,711P. Illustration 24cm Book Agriculture ddc BOOKS