TY  - BOOK
AU  - Young, Donald
AU  - Bix, Cynthia Overbeck
TI  - (The) Sierra Club book of our national parks
SN  - 0316977446 
AV  - E 160 You
PY  - 1990///
CY  - San Francisco
PB  - Sierra Club Books
KW  - National parks and reserves - United States - Juvenile literature
ER  -