Proceedings : of the fourth international soil classification workshop[held in] Rwanda on 2 to12 June 1981:Part 1:Papers
/ Ed.by F.H.Beinroth, H.Neel, H.Eswaran
. - Bruxelles : ABOS : AGCD, 1983
. - VII-518 p. : ill., couv. ill. en coul. ; 29 cm.
- Agricultural editions 4 .
don
631.44
don
631.44