PENAC "P" : a new soil conditioning system without chemicals for agriculture and horticulture :

Bibliographic Details
Format:	Book
Language:	English
Published:	Grecia, C.R. : Ponderco S.A. , 1996
Subjects:	AGRICULTURA HORTICULTURA SUELO AGRICULTURA ORGANICA

Description
Physical Description:	[67] p. : il. ; 28 cm.

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