Planetary nebulae /D. Reidel Publishing company, symposium no. 34 held in Tatranska Lomnica, Czechoslovakia 4-8 September 1967 - Dordrecht: D. Reidel Publishing Company, 1968 - xv, 469p. - International astronomical union .

Subjects--Topical Terms:
Cosmoses

Subjects--Index Terms: Universe

Universal Decimal Class. No.: 524.37(082.2) / K8