Earthworms for ecology & profit
By: Ronald E. Gaddie and Donald E. Douglas
Contributors: Douglas, Donald E. , joint author
Publisher: North American Bait Farms
Published: 1975
Place of publication: [Ontario, Calif
Language: eng
Subjects: Earthworm culture; Earthworms
Other titles: Scientific earthworm farming
Table of contents: value: v. 1. Scientific earthworm farming