【预订】The Reference Interview Today: Negotiating and Answering
美国库房发货,通常付款后3-5周到货!
/ 2014-02-07
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【预订】Memories of Life on the Farm: Through the Lens of Pionee
国外库房发货,通常付款后3-5周到货!
2019-09-30
Product Details 基本信息 ISBN-13 书号 9781557538666 Author 作者 Frederick Whitford^^Neal Harmeyer Format 版本 精装 Pages Number 页数 408页 Publisher 出版社 Purdue University Press Publication Date 出版日期 2019-09-30 Language 语种 其它(含多语) Book Contents 内容简介 John Calvin?Allen, professionally known as J. C., worked as aphotographer for Purdue University from 1909-1952, and operated his own photography business until his death in 1996. The J. C. Allen photographs represent a historical account of the transition from pioneer practices to scientific methodologies in agriculture and rural communities. During this major transitional period for agriculture, tractors replaced horses, hybrid corn supplanted open-pollinated corn, and soybeans changed from a novelty crop to regular rotation on most farms. During this time, pure bred animals with better genetic pedigrees replaced run-of-the-mill livest
¥468.00