TY  - BOOK
AU  - Naeser,Charles W.
AU  - Izett,Glen Arthur
AU  - Obradovich,John D.
TI  - Fission-track and K-Ar ages of natural glasses
U1  - 552.2 
PY  - 1980///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Obsidian
KW  - Tektite
KW  - Radioactive dating
N1  - Bibliography: p. 13-15
ER  -