(1995). Friend21 human interface architecture guidelines. Tokyo: Institute for Personalized Information Environment.
Dyfyniad Arddull ChicagoFriend21 Human Interface Architecture Guidelines. Tokyo: Institute for Personalized Information Environment, 1995.
Dyfyniad MLAFriend21 Human Interface Architecture Guidelines. Tokyo: Institute for Personalized Information Environment, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.