Text ( visual ) : unmediated Spatial aspects of economic and social behavior in T'ai-wan / Ronald Gary Knapp. -- Ann Arbor, Mich. : University Microfilms International, c1969. -- viii, 229 p. -- Thesis (Ph.D.) -- University of Pittsburgh, 1968 ; Photocopy. -- (BA18493965) ; https://ci.nii.ac.jp/ncid/BA18493965 Author Heading(s): Knapp, Ronald G.