APA (7th ed.) Citation

Gurzadi͡an, G. A. (1971). Planetary Nebulae. Springer Netherlands.

Chicago Style (17th ed.) Citation

Gurzadi͡an, G. A. Planetary Nebulae. Dordrecht: Springer Netherlands, 1971.

MLA (9th ed.) Citation

Gurzadi͡an, G. A. Planetary Nebulae. Springer Netherlands, 1971.

Warning: These citations may not always be 100% accurate.