Earthworms - The Soil Managers : their role in restoration and improvement of soil fertility / Rajiv K. Sinha ... [et al.]. -- New York : Nova Science Publishers, [2011]. -- viii, 54 s. : ill. -- (Agriculture issues and policies). -- ISBN 978-1-61122-514-3

1. manažment pôdy 2. soil management

I. Sinha, Rajiv K.

631.4
BB301