Sirisak Mahavorasilpa. (1977). An economic analysis of farm Virginia Tobacco production, efficiency, costs and returns in Chiang Mai: 1975. s.n.
Chicago-Zitierstil (17. Ausg.)Sirisak Mahavorasilpa. An Economic Analysis of Farm Virginia Tobacco Production, Efficiency, Costs and Returns in Chiang Mai: 1975. s.l: s.n, 1977.
MLA-Zitierstil (9. Ausg.)Sirisak Mahavorasilpa. An Economic Analysis of Farm Virginia Tobacco Production, Efficiency, Costs and Returns in Chiang Mai: 1975. s.n, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.