Earthworms for ecology & profit
By: Ronald E. Gaddie, Sr. and Donald E. Douglas.
Contributors: Douglas, Donald  E.
Edition: Rev. ed.--
Publisher: Bookworm Pub. Co.
Published: 1975
Place of publication: Ontario, Calif
Language: eng
Subjects: Earthworms; Earthworm culture
Table of contents: title: v. 2. Earthworms and the ecology.