@book{7226,
	author = {Hall, T. E.},
	title = {Semigroups /},
	publisher = {Academic Press,},
	year = {c1980.},
	address = {New York :},
	note = {"Proceedings of the Monash University Conference on Semigroups, held at the Monash University, Clayton, Victoria, Australia, October 1979."}
}