TY  - BOOK
AU  - Mattioni, John
ED  - Mattioni, Mattioni & Mattioni
TI  - Pennsylvania: Environmental law handbook 
T2  - State environmental law handbook series
SN  - 0865872732
AV  - KFP354 P45 1991
PY  - 1991///
CY  - Rockville, maryland
PB  - Government institutes
KW  - Derecho ambiental
KW  - Estados Unidos
KW  - Pennsylvania
ER  -