@book{58484,
	author = {"Tokeo, Koyana and Chittana, Chammek."},
	title = {Varietal difference of Thai rice in the resistance to phosphorus deficiency Tech. Bull. No.4},
	publisher = {"Trop.Agric. Res.Centre, Min.of Agric.& Forestry"},
	year = {Japan},
	address = {1973}
}