Written by and Donald Douglas , this volume was first published in the mid-1970s and serves as a foundational guide for vermiculture—the scientific breeding and raising of earthworms. Key Details of Volume 1 Go to product viewer dialog for this item.
Earthworms for Ecology and Profit: Scientific Earthworm Farming, Vol.1 by Ronald E. Gaddie; Donald Douglas by Bookworm Pub Co, Paperback Earthworms for Ecology and Profit, vol. 1: Scie...
Earthworms Ecology & Profit 1975 1st + Raising Earthworms For Profit Written by and Donald Douglas , this volume
Softcover book. Published by Bookworm Publishing Company, Incorporated (1977) Go to product viewer dialog for this item. Written by and Donald Douglas
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