@book{227221,
	author = {Wrigh, S. F. and Upadhyaya, A.},
	title = {A survey of soils for aggregate stability and glomalin, a glycoprotein produced by hyphae of arbuscular mycorrhizal fungi [PDF]},
	publisher = {Kluwer Academic},
	year = {1998},
	address = {New York}
}