Physical description for original version: 32 p. : 28 cm
書誌注記
Includes bibliographical references: (p. 26)
原資料等に関する注記
原資料の出版事項: Atlanta, Ga. ; Washington, DC : U.S. Dept. of the Interior, Fish & Wildlife Service : U.S. Environmental Protection Agency, Region IV : For sale by the U.S. G.P.O., Supt. of Docs., 1994