TY  - BOOK
AU  - Guenat, D. V.
TI  - Study of the transformation of traditional farming in selected areas of central Bhutan: the transition from subsistence to semi-subsistence, amrket oriented farming 
U1  - e-book (MDP) 
PY  - 1991///
CY  - Zurich
PB  - Swiss federal Institute of Technology
N1  - Includes bibliographical references and index
ER  -