APA (7th ed.) Citation
Krauss, M. E., & Friedrich, P. (1969). On the Classification in the Athapascan, Eyak, and the Tlingit verb.
Chicago Style (17th ed.) Citation
Krauss, Michael E., and Paul Friedrich. On the Classification in the Athapascan, Eyak, and the Tlingit Verb. 1969.
MLA (9th ed.) Citation
Krauss, Michael E., and Paul Friedrich. On the Classification in the Athapascan, Eyak, and the Tlingit Verb. 1969.
Warning: These citations may not always be 100% accurate.