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Poultry Grading Manual
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840 sayfa · 1951
4-H clubs
Standardization and Inspection of Fresh Fruits and Vegetables
William Henry White, Sears Polydore Doolittle · Yayınevi bilinmiyor
1276 sayfa · 1946
Agricultural colleges
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David Starr Jordan, Edward Drinker Cope, George Brown Goode, George Newbold Lawrence, Jerome Henry Kidder, Thomas Hale Streets, William Healey Dall · Yayınevi bilinmiyor
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Amphibians
