Text ( visual ) : unmediated Iran, a country study / Federal Research Division, Library of Congress ; edited by Helen Chapin Metz. -- 4th ed. -- Washington, D.C. : The Division : For sale by the Supt. of Docs., U.S. G.P.O. , 1989. -- xxxiv, 344 p. : ill. ; 24 cm. -- (Area handbook series ; DA pam ; 550-68). -- "Research completed December 1987." ; Bibliography: p. 309-332 ; Includes index. -- (BA13939932) ; https://ci.nii.ac.jp/ncid/BA13939932 Author Heading(s): Metz, Helen Chapin ; Library of Congress. Federal Research Division. -- Classification(s): LCC : DS254.5 ; DC19 : 955. -- Subject Heading(s): LCSH : Iran