@book{95958,
	author = {Symposium on soil testing: Correlating and Interpreting the Analytical Results. Tennesia, Knoxville, Aug.1975.},
	title = {Soil testing; correlating and interpreting the analytical results proceedings.},
	publisher = {Wisconsin, Am.Soc.Agronomy},
	year = {1977},
	series = {ASA special publication no.29},
	address = {Madison}
}