637
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Tracy, P. H. (Paul Hubert), 1894-
Dairy plant management / [by] Paul H. Tracy, George D. Armerding [and] Harold W. Hannah. With the assistance of George W. Harper ... [et al.].
— New York : McGraw-Hill, 1958. 439 p. : il. ; 24 cm. — (McGraw-Hill publications in the agricultural sciences)
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