Walker, M. F., & Kron, G. E. (1967). The determination of stellar magnitudes by electronography. [Selbstverl.].
Chicago Style (17th ed.) CitationWalker, Merle F., and Gerald E. Kron. The Determination of Stellar Magnitudes by Electronography. Mount Hamilton, Calif: [Selbstverl.], 1967.
MLA (9th ed.) CitationWalker, Merle F., and Gerald E. Kron. The Determination of Stellar Magnitudes by Electronography. [Selbstverl.], 1967.
Warning: These citations may not always be 100% accurate.