@book{95862,
	author = {Piper, C.S.},
	title = {Soil and plant analysis; a laboratory manual of methods for the examination of soils and the determination of the inorganic constituents of plants.},
	publisher = {Hans publishers},
	year = {1966},
	series = {A Monograph from the Waite Agricultural Research Institute},
	address = {Bombay}
}