Environmental strategies handbook
Rao V. Kolluru, editor in chief
McGraw-Hill, 1994
 Buku Referensi
Rodgers, William H.
Environmental law
West Publishing, 1994
 Buku Teks SO
Environmental, health, and safety auditing handbook
Lee Harrison, editor in chief
McGraw-Hill, 1995
 Buku Referensi
Supplement to the environmental, health, and safety auditing handbook
edited by Lee Harrison
McGraw-Hill, 1997
 Buku Referensi
Selected environmental law statutes
West Publishing Co, 1993
 Buku Referensi