University of Colorado (Boulder campus). Bureau of Business Research, Colorado Springs Chamber of Commerce, & Crampon, L. J. (1953). The Pikes Peak region as a tourist resort.
Lua i Stíl Chicago (17ú heag.)University of Colorado (Boulder campus). Bureau of Business Research, Colorado Springs Chamber of Commerce, agus L. J. Crampon. The Pikes Peak Region as a Tourist Resort. Boulder, 1953.
Lua MLA (8ú heag.)University of Colorado (Boulder campus). Bureau of Business Research, et al. The Pikes Peak Region as a Tourist Resort. 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.