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Soil survey field handbook : describing and sampling soil profiles / compiled and edited by J. M. Hodgson ; from contributions by B. W. Avery Book Publication Harpernden : Soil Survey, 1976
Description vi, 99 p. : 12 il., 22 tabelas ; 22 cm + 1 envelope com um desdobrável LocationBiblioteca Mário Sottomayor Cardia Availability Reference (1).

Soil survey laboratory methods / edited by B. W. Avery and C. L. Bascomb ; contributions by B. W. Avery, e outros Book Publication Harpenden : Soil Survey, 1974
Description vi, 83, [4] p. : 8 il., 4 grav. ; 21 cm LocationBiblioteca Mário Sottomayor Cardia Availability Reference (1).