Rights Statementhttps://rightsstatements.org/vocab/CNE/1.0/CreditDenver Public Library Special Collections, [call number]Digital Reproduction Available for PurchaseFree download available
Koeppe, Richard P., Letter to Rachel B. Noel from Richard P. Koeppe (Jan 7, 1971). Denver Public Library Digital Collections, accessed 18/11/2025, https://digital.denverlibrary.org/nodes/view/1015210