TY  - BOOK
AU  - Johnson, W. N., ed.
ED  - Gamma Ray Observatory Science Workshop
ED  - Naval Research Laboratory 
TI  - proceedings of the gamma ray observatory science workshop 10-12 Apr 1989, Goddard Space Flight centre, Greenbelt, MD
PY  - 1969///
CY  - Washington
PB  - Naval Research Laboratory
KW  - gamma ray observatories
ER  -