Richey, C. W., & Crean, M. J. (1973). Site requirements of commercial users. Business Research Division, University of Colorado.
Čikaški stil citiranja (17. izdanje)Richey, Clyde W., i Michael J. Crean. Site Requirements of Commercial Users. Boulder: Business Research Division, University of Colorado, 1973.
MLA način citiranja (8. izdanje)Richey, Clyde W., i Michael J. Crean. Site Requirements of Commercial Users. Business Research Division, University of Colorado, 1973.
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