@book{31357,
	author = {Birkhoff, Garrett},
	title = {Trends in lattice theory.},
	publisher = {Van Nostrand Reinhold Co.},
	year = {[1970]},
	series = {Van Nostrand Reinhold mathematical studies #31},
	address = {New York},
	note = {"Written versions of four talks ... delivered to a symposium on trends in lattice theory held at the United States Naval Academy in May of 1966."}
}