Cita APA

Chester, T., & Alden, R. H. (1997). Mastering Excel 97 (4th ed.). BPB.

Chicago Edition Citation

Chester, Thomas, i Richard H. Alden. Mastering Excel 97. 4th ed. New Delhi: BPB, 1997.

Cita MLA

Chester, Thomas, i Richard H. Alden. Mastering Excel 97. 4th ed. BPB, 1997.