TY  - BOOK
AU  - Blackburn William H
AU  -  Dennen William H
TI  - Principles of Mineralogy by William H Blackburn and William H Dennen
SN  - 069715078X
U1  - H1, M8;N4 
PY  - 1994///
CY  - Dubuque,lowa Wm C Brown Pub
KW  - Minerology
ER  -