Catalogue of galactic planetary nebulae /
[by] Luboš Perek [and] Luboš Kohoutek.
APA Citation
Perek, L., Kohoutek, L. (1967). Catalogue of galactic planetary nebulae. Prague: Academia.
MLA Citation
Perek, Luboš, and Luboš Kohoutek. Catalogue of Galactic Planetary Nebulae. Prague: Academia, 1967.
Warning: These citations may not always be complete (especially for serials).