-. (1988). Selected environmental law statutes: 1988-1989 educational edition. West Pub.
Chicago-čujuhus (17. p.)-. Selected Environmental Law Statutes: 1988-1989 Educational Edition. St. Paul: West Pub, 1988.
MLA-čujuhus (9. p.)-. Selected Environmental Law Statutes: 1988-1989 Educational Edition. West Pub, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.