TY  - BOOK
AU  - Yard,Robert Sterling
ED  - United States.
TI  - The national parks portfolio,
PY  - 1917///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - National parks and reserves
KW  - United States
N1  - At head of title: Department of the interior, Franklin K. Lane, secretary
ER  -