Physical Description:5 v. : ill., maps ; 43 cm.
Notes:Issues also have distinctive titles.
Issue Notes:Issues also called first through fifth newsletters.
Related Titles:Companion publication issued Nov. 1981 as a follow-up on an article appearing on p. 8 of the Sept. 1981 issue: Susitna hydro studies. Interviews with eminent scientists, engineers and economist give insight into proposed Susitna Hydroelectric Project