@book{10619,
	author = {Townsend, Carl,},
	title = {Introduction to Turbo prolog /},
	publisher = {Sybex ;},
	year = {1988 [Reprinted].},
	address = {Berkeley :},
	note = {On t.p. the registered trademark symbol "TM" is superscript following "Prolog" in the title.}
}