Leer, Jeff. 1979. Proto-Athabaskan Verb Stem Variation, part 1: Phonology. (Alaska Native Language Center, Research Paper, 1.) Fairbanks: Alaska Native Language Center. iii+100pp.
@book{leer1979protophonology,
address = {Fairbanks},
author = {Leer, Jeff},
pages = {iii+100},
publisher = {Alaska Native Language Center},
series = {Alaska Native Language Center, Research Paper},
title = {Proto-Athabaskan Verb Stem Variation, part 1: Phonology},
volume = {1},
year = {1979}
}