Brown, S. B. B. (1946). Realm of science, Vol.11: Atoms, stars and nebulae.
Chicago Edition CitationBrown, Stanley B; Brown. Realm of Science, Vol.11: Atoms, Stars and Nebulae. Touchstone Publishing Company, Kentucky, 1946.
ציטוט MLABrown, Stanley B; Brown. Realm of Science, Vol.11: Atoms, Stars and Nebulae. 1946.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.