Design Methods Group. (1972). The DMG 5th anniversary report, January 1972. Design Methods Group.
Chicago-viite (17. p.)Design Methods Group. The DMG 5th Anniversary Report, January 1972. Berkeley, Calif.: Design Methods Group, 1972.
MLA-viite (8. p.)Design Methods Group. The DMG 5th Anniversary Report, January 1972. Design Methods Group, 1972.
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