TY  - BOOK
AU  - Singh, Birpal, ed.
AU  - Hira, Nand, ed.
TI  - Operational research project on tribal area potato problems and development of potato crop, Lahaul-Spiti (H.P.) : Project report 1981-87
PY  - 1988///
CY  - Shimla
PB  - Central Potato Research Institute
ER  -