Raising earthworms for profit / [electronic resource]
Shields, Earl Bell, 1892- Raising earthworms for profit / [electronic resource] / by Earl B. Shields.. — 18th ed.. — Eagle River, Wis. : : Shields Publications,, c1982.. — 128 p. : : ill. ; 22 cm.
Includes index.
0914116215 9780914116219
Earthworm culture.
SF597.E3 / S48 1982
639.75/46