15TH World Congress of Soil Science : ACAPULCO, MEXICO, JULY 1994 /
INTERNATIONAL SOCIETY OF SOIL SCIENCE
- MEXICO : INSTITUTO NACIONAL DE ESTADISTICA GEOGRAFIA E INFORMATICA , 1994
- 9 VOL
SUELOS - ESTUDIOS
S591 C2 I88
SUELOS - ESTUDIOS
S591 C2 I88