TY  - BOOK
AU  - Keoke, Emory Dean
AU  - Porterfield, Kay Marie
TI  - American Indian contributions to the world. Science and technology
SN  - 816053979
U1  - 500.8997 KEO 
PY  - 2005///
CY  - New York
PB  - Facts On File
KW  - Indian astronomy
ER  -