Pusch, M.D., Editor (1979). The parable. Multicultural education: A cross-cultural training approach (pp. 138-140). Intercultural Network, Inc.

The Parable is also in:

Holmes, H., & Guild, S. (1973). The parable: An introduction to cultural values. In A manual for teaching techniques for intercultural education (pp. 1-4). United Nations Educational, Scientific and Cultural Organization.