实物特征: Onion smudge /

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书目详细资料
主要作者:	Walker, J. C. 1893-1994.
格式:	图书
语言:	English
出版:	Washington, D. C. : Government Printing Office, 1921.
标签:	添加标签没有标签, 成为第一个标记此记录!

实物特征
Item Description:	Reprinted from Journal of Agricultural Research, v. 20, p. 685-722, 1921.
实物描述:	p. 685-722 [6] pages of plates : ill. ; 26 cm.
参考书目:	Includes bibliographical references (p. 719-721).