APA
Ferrey Steven,, . (1997). Environmental law: Examples and explanations. : Aspen Law & Business.
Chicago
Ferrey Steven,, . 1997. Environmental law: Examples and explanations. : Aspen Law & Business.
Harvard
Ferrey Steven,, . (1997). Environmental law: Examples and explanations. : Aspen Law & Business.
MLA
Ferrey Steven,, . Environmental law: Examples and explanations. : Aspen Law & Business. 1997.