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Purebred Sires Effect Herd Improvement
M. N. Lawritson
· 1919
Outline of Object and Plan of the Nebraska National Egg Laying Contest
E. E. Brackett
, Edgar Albert Burnett
, Horace Clyde Filley
, John Owen Rankin
, Julius Herman Frandsen
, M. N. Lawritson
· 1917
No image available
Purebred Sires Effect Herd Improvement
Nebraska Agricultural Experiment Station
, W.B. Nevens
, J.W. Hendrickson
, M.N. Lawritson
· 1919
No image available
Outline of Object and Plan of the Nebraska National Egg Laying Contest
E. E. Brackett
, Edgar Albert Burnett
, Horace Clyde Filley
, Leon Wilson Chase
· 1917
