TY  - BOOK
AU  - Blackwood,Paul Everett
AU  - Garrels,Robert Minard
AU  - Stephens,Margaret McKown
TI  - The world and its wonders
T2  - Child horizons
SN  - 0873921097 :
AV  - Q163 .B653 1978
U1  - 500 
PY  - 1978///
CY  - Chicago
PB  - Standard Educational Corp.
KW  - Science
KW  - Juvenile literature
N1  - Includes index
N2  - Includes brief articles in the areas of astronomy, geology, meteorology, energy, commerce, and industry
UR  - http://www.archive.org/details/worlditswonders00blac
UR  - http://www.openlibrary.org/books/OL4717108M
ER  -