Secrets of the Soil/ (Acc: 1934)

Tompkins, Peter.

Secrets of the Soil/ (Acc: 1934) Peter Tompkins and Christopher Bird. - 1st ed. - New York : Harper & Row, c1989. - xxiv, 444 p. : ill. ; 25 cm.

0060158174 : $24.95


Soils.
Soil management.
Organic farming.
Agricultural ecology.

631.4 TOM

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