Influence of type of hog on production efficiency / by J.H. Zeller and H.O. Hetzer.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Agriculture,
1944.
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| Series: | Circular (United States. Department of Agriculture) ;
no. 698. |
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