Robert W. Young (May 18, 1912 – February 20, 2007),[1] professor emeritus of linguistics at the University of New Mexico, was an American linguist known for his work on the Navajo language. From the late 1930s, Young cooperated with the Navajo linguist and scholar William Morgan, publishing a "practical orthography" in 1937. -Wikipedia

Navajo Language
2014
ISBN 9781503245099
Athabaskan language studies
1996
ISBN 9780826317056
The Navajo Language
2003
ISBN 9781893354012