Kaikan, K. (1991). Friend21: "91 international sysposium on next generation human interface. Tokyo: Institute for Personalized Information Environment.
Čikaški stil citiranjaKaikan, Keidanren. Friend21: "91 International Sysposium On Next Generation Human Interface. Tokyo: Institute for Personalized Information Environment, 1991.
MLA način citiranjaKaikan, Keidanren. Friend21: "91 International Sysposium On Next Generation Human Interface. Tokyo: Institute for Personalized Information Environment, 1991.
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