Bolocan, David Lotus 1-2-3/G simplified / David Bolocan. - Blue Ridge Summit, PA. : Windcrest Books, 1991. - xix, 346 p. : ill. ; 24 cm. Includes index. ISBN: 0830676422 LCCN: 90-046705 Subjects--Topical Terms: Lotus 1-2-3 (Computer program)Business--Computer programs