APA (7th ed.) Citation

Chincarini, G., & Walker, M. F. (1968). Studies of extragalactic nebulae. [Selbstverl.].

Chicago Style (17th ed.) Citation

Chincarini, Guido, and Merle F. Walker. Studies of Extragalactic Nebulae. Mount Hamilton, Calif: [Selbstverl.], 1968.

MLA (9th ed.) Citation

Chincarini, Guido, and Merle F. Walker. Studies of Extragalactic Nebulae. [Selbstverl.], 1968.