Kotonya, G. (1998). Requirements engineering: Processes and techniques. Wiley.
Chicago-čujuhus (17. p.)Kotonya, Gerald. Requirements Engineering: Processes and Techniques. Chichester: Wiley, 1998.
MLA-čujuhus (9. p.)Kotonya, Gerald. Requirements Engineering: Processes and Techniques. Wiley, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.