Ingalsbe, L. Lotus 1-2-3 for IBM and Compatible Microcomputers. Toronto: Merrill Publishing Company, 1991 220 p. : ill. 0-675-21364-9.
Ingalsbe, L. Lotus 1-2-3 for IBM and Compatible Microcomputers. Toronto: Merrill Publishing Company, 1991 220 p. : ill. 0-675-21364-9.
Ingalsbe, L. (1991) Lotus 1-2-3 for IBM and Compatible Microcomputers, Toronto: Merrill Publishing Company 220 p. : ill. 0-675-21364-9.
Ingalsbe, L. (1991). Lotus 1-2-3 for IBM and Compatible Microcomputers. Monogr.. Toronto: Merrill Publishing Company, 220 p. : ill.
Ingalsbe L. Lotus 1-2-3 for IBM and Compatible Microcomputers: Monogr.. Toronto: Merrill Publishing Company; 1991. p. 220 p. : ill. ISBN: 0-675-21364-9.