APA Цитирование

Perek L., & Kohoutek L. (1967). Catalogue of Galactic planetary Nebulae: Luboš Perek, Luboš Kohoutek. Prague Academy Publishing House of the Czechoslovak Academy of Sciences 1967.

Chicago-стиль цитирования

Perek L., and Kohoutek L. Catalogue of Galactic Planetary Nebulae: Luboš Perek, Luboš Kohoutek. Prague Academy Publishing House of the Czechoslovak Academy of Sciences 1967, 1967.

MLA-цитирование

Perek L., and Kohoutek L. Catalogue of Galactic Planetary Nebulae: Luboš Perek, Luboš Kohoutek. Prague Academy Publishing House of the Czechoslovak Academy of Sciences 1967, 1967.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.