Natural enemies of pests associated with prairie crops

Federal-grant research at the state agricultural experiment stations

United States. Agricultural Research Service

A Text-book on Roofs and Bridges

Mansfield Merriman

The human intellect

Porter, Noah

[City life and progress]

American Academy of Political and Social Science.

Zhongguo nong ye bai ke quan shu

中国农业百科全书编辑部

The Pesticide Detox

Jules Pretty

Handbuch der Pflanzenkrankheiten

Paul Sorauer

Management of pests and pesticides

Joyce Tait

A chronology of paper and papermaking

Joel Munsell

Health Effects of Pesticides

Srivastava, A. K.