2 literature references for Aeronautes saxatalis sclateri Rogers, 1939:

Author:
Year: 1996
Title:
Source: database, NODC Taxonomic Code
Author: Behle, William H.
Year: 1973
Title: Clinal Variation in White-throated Swifts from Utah and the Rocky Mountain Region
Source: The Auk, vol. 90, no. 2