L Barbara Brown & Stanley B Brown. (1972). Realm of life. V.15: The earth and its origin. Kentucky.
Chicago Edition CitationL Barbara Brown and Stanley B Brown. Realm of Life. V.15: The Earth and Its Origin. Kentucky, 1972.
MLA Edition CitationL Barbara Brown and Stanley B Brown. Realm of Life. V.15: The Earth and Its Origin. Kentucky, 1972.
Warning: These citations may not always be 100% accurate.