LITERATURE CITED
- Lowy, B. 1968. Un hongo de piedra preclásica de Mixco Viejo, Guatemala. Bol. Soc. Méx. Micol. 2: 9–15.
- Lowy, B. 1971. New records of mushroom stones from Guatemala. Mycologia 63: 983–993.
- Lowy, B. 1972a. A newly discovered copy of a Maya codex. Revista Interamer. Rev. 2: 405–407.
- Lowy, B. 1972b. Mushroom symbolism in Maya codices. Mycologia 64: 816–824.
- Watson, R. G. 1969. Soma: divine mushroom of immortality. Harcourt, Brace & World, Inc., New York. 381 p.