Text ( visual ) : unmediated Tourism planning and development issues / editors, Donald E. Hawkins, Elwood L. Shafer, James M. Rovelstad. -- Washington, D.C. : George Washington University , 1980. -- 473 p. : ill., maps ; 23 cm. -- "The International Symposium on Tourism and the Next Decade was held on March 11-15, 1979 at George Washington University, Washington D.C." ; Includes bibliographical references. -- (BA70354420) ; https://ci.nii.ac.jp/ncid/BA70354420 Author Heading(s): International Symposium on Tourism and the Next Decade (1979 : George Washington University) ; Hawkins, Donald E. ; Shafer, Elwood L. ; Rovelstad, James M. ; George Washington University. -- Subject Heading(s): LCSH : Tourist trade -- Addresses, essays, lectures ; LCSH : Tourist trade -- Congresses