Clifford, M. E. (1989). Advanced Techniques in Lotus 1-2-3 (1st Indian ed.). BPB Publications.
Cita Chicago (17th ed.)Clifford, Michael E. Advanced Techniques in Lotus 1-2-3. 1st Indian ed. New Delhi: BPB Publications, 1989.
Cita MLA (9th ed.)Clifford, Michael E. Advanced Techniques in Lotus 1-2-3. 1st Indian ed. BPB Publications, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.