Using national sire summaries to improve selection skills
By: W.A. Zollinger.
Contributors: Oregon State University. Extension Service.
Series: EC -- 1345.; Extension circular (Oregon State University. Extension Service) -- 1345.
Publisher: Oregon State University Extension Service
Published: 1990
Place of publication: Corvallis, Or
Language: eng
Subjects: Cattle -- Breeding -- Mathematical models.; Bulls.
Notes: Title from caption.

"January 1990."

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