(1989). Selected environmental law statutes 1989-90 educational edition. West Publishing.
Citazione stile Chigago Style (17a edizione)Selected Environmental Law Statutes 1989-90 Educational Edition. West Publishing, 1989.
Citatione MLA (9a ed.)Selected Environmental Law Statutes 1989-90 Educational Edition. West Publishing, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.