Robinson, William J, Bruce G Harrill, and Richard L Warren. 1975. Tree-Ring Dates From Arizona H-I Flagstaff Area. Tucson: University of Arizona.

Douglass, AE. 1901. ?Altitudes And Locations?. Coconino Sun. Coconino Sun.

Funston, CM, and AE Douglass. 1895. ?How Tall We Are?. Coconino Sun. Coconino Sun.