APA ציטוט
Payne-Gaposchkin, C. (1956). Introduction to astronomy. Eyre and Spottiswoode.
Chicago Style (17th ed.) Citation
Payne-Gaposchkin, Cecilia. Introduction to Astronomy. London: Eyre and Spottiswoode, 1956.
ציטוט MLA
Payne-Gaposchkin, Cecilia. Introduction to Astronomy. Eyre and Spottiswoode, 1956.
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