TY  - BOOK
AU  - Johnson,Harold L
ED  - Symposium Recent Advances in Observational Astronomy
TI  - Symposium Recent Advances in Observational Astronomy/ed.by
U1  - A9R31f1344 
PY  - 1981///164 p.,phot.,diagr
CY  - Mexico
PB  - Univers.Nacionale Autonomica
KW  - Astronomy-Conference
ER  -