A Reconstruction of Visual Structure\. Gouache and water color on paper.
Du+. pho'ng cho giai ddoa.n ba cu?a ta'c pha^?m so+n da^`u Niagara Falls,
go^`m ba tha`nh pha^`n: The American Falls (86''x44'') 1982, Goat Island
(86''x44'') 1983, va` Horseshoe (86''x44'') 1984.