TY  - BOOK
AU  - Zinck,J.Alfred
TI  - Soil survey : : perspectives and strategies for the 21st centuary ; an International Workshop, November 1992, Conschede / 
SN  - 9251036624
PY  - 1995///
CY  - Rome : 
PB  - Food and Agriculture Organization of the United Nations, 
KW  - Soil surveys
ER  -