作者: Lorna Coppinger , Jay R. Lorenz
DOI:
关键词: Technical report 、 Training (civil) 、 Library science 、 Livestock 、 Raising (linguistics) 、 Computer science
摘要: Published April 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information the OSU Extension Catalog: http://extension.oregonstate.edu/catalog