Browsing Agricultural Experiment Station -- Circulars of Information by Author "Haag, J. R. (Joseph Roy), 1896-"

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The reproductive performance of dairy cattle in Tillamook county and possible relationship to available feed (progress report )

Oregon State College. Agricultural Experiment Station; Jones, I. R. (Idwal Ralph), 1898-; Haag, J. R. (Joseph Roy), 1896- ([Corvallis, Or.] : Agricultural Experiment Station, Oregon State College, 1943-11)