TY  - BOOK
ED  - Estados Unidos.
TI  - Protecting american's estuaries: The potomac ; hearings before a subcommittee on government operations house of representatives, ninety-first congress, second session july 21 and 22, 1970
AV  - S916 P681970
PY  - 1970///
CY  - Washington
PB  - Government print. off
KW  - Recursos naturales
KW  - Estados Unidos
KW  - Conservacion de la naturaleza
KW  - Conservación de los recursos naturales
KW  - Río Potemac
ER  -