TY  - BOOK
AU  - Osterbrock,Donald E.
AU  - O'Dell,Charles Robert
ED  - Symposium on Planetary Nebulae
ED  - International Astronomical Union.
TI  - Planetary nebulae
AV  - QB855.5 
U1  - 523.1/12 
PY  - 1968///
CY  - Dordrecht
PB  - D. Reidel Pub. Co.
KW  - Planetary nebulae
KW  - Congresses
N1  - At head of title: International Astronomical Union; "Symposium no. 34."; Includes bibliographies
ER  -