美国收藏中国农业古籍慨况（一）王华夫（黑龙江省佳木斯农业学校）１９９４年７月４—９日，作者应国际农药化学委员会及美国化学学会的邀请，在华盛顿参加了第八届国际农药学术讨论会。会后，到美国国会图书馆、哈佛大学图书馆等文教单位查阅文献，历时半年多。主要收集... (1) Wang Wafu (Heilongjiang Jiamusi Agricultural School) July 4-9, 1994, at the invitation of the International Commission of Pesticide Chemistry and American Chemical Society, the author attended the 8th International Conference on Pesticide Science discussion. After the meeting, to the United States Congress Library, Harvard University Library and other cultural and educational institutions access to literature, which lasted more than six months. Main collection ...