Pelt, G. W. v. (1975). Hierarchies: The cosmic ladder of life. Theosophical manual.
Chicago Style (17th ed.) CitationPelt, Gertrude W. van. "Hierarchies: The Cosmic Ladder of Life." Theosophical Manual 1975.
MLA (8th ed.) CitationPelt, Gertrude W. van. "Hierarchies: The Cosmic Ladder of Life." Theosophical Manual, 1975.
Warning: These citations may not always be 100% accurate.