| :Young, Robert W. and William Morgan. Coyote Tales. U.S. Department of the Interior, Branch of Education, Bureau of Indian Affairs.. 1949. | | 1949 | | |
| :Young, Robert W. and William Morgan. The Navajo Language: A Grammar and Colloquial Dictionary. Albuquerque: University of New Mexico Press.. | | | | |
| Dinwoodie, David W. and William Morgan. "William Morgan (1917-2001): Navajo Linguist". Anthropological Linguistics. 43(No. 4, Winter). 2003. | 426-449 | 2003 | | |
| Young Robert W. and William Morgan. The Navajo Language: The Elements of Navaho Grammar with a Dictiionary in Two Parts Containing Basic Vocabularies of Navaho and English.. Phoenix, AZ.: Education Division, United States Indian Service.. 1943. | | 1943 | | |
| Young, Robert W. and William Morgan. Analytical Lexicon of Navajo. Albuquerque: University of New Mexico Press. 1992. | | 1992 | | |
| Young, Robert W. and William Morgan. Colloquial Navaho: a Dictionary. New York: Hippocrene Press. 1994. | | 1994 | | |