TY  - BOOK
AU  - Harlan True Stetson
AU  - Stetson,Harlan True
TI  - Sunspots in Action
U1  - B804S82f360 
PY  - 1947///
CY  - New York
PB  - The Ronald Press Company
KW  - Astrophysics
KW  - Sunspot
ER  -