Text ( visual ) : unmediated El Salvador and economic integration in Central America : an econometric study / Gabriel Siri. -- Lexington, Mass. : Lexington Books , c1984. -- xv, 206 p. : ill. ; 24 cm. -- (The Wharton econometric studies series). -- Includes bibliographies and index. -- ISBN 0669055514 ; (BA11522704) ; https://ci.nii.ac.jp/ncid/BA11522704 Author Heading(s): Siri, Gabriel. -- Classification(s): LCC : HC148 ; DC19 : 330.97284/052/0724. -- Subject Heading(s): LCSH : El Salvador -- Economic conditions -- 1945- -- Econometric models ; LCSH : Central America -- Economic conditions -- Econometric models