Petersen, C. C. (2026). Astronomy 101, 2nd Edition: From Gravitational Waves and Merging Black Holes to New Exoplanets and Asteroid Samples, Key Theories, Discoveries, and Fa. Adams Media Corporation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Petersen, Carolyn Collins. Astronomy 101, 2nd Edition: From Gravitational Waves and Merging Black Holes to New Exoplanets and Asteroid Samples, Key Theories, Discoveries, and Fa. Adams Media Corporation, 2026.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Petersen, Carolyn Collins. Astronomy 101, 2nd Edition: From Gravitational Waves and Merging Black Holes to New Exoplanets and Asteroid Samples, Key Theories, Discoveries, and Fa. Adams Media Corporation, 2026.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.