H80-16/038 Wilking Collection, Triangle Service Station Addition, Casper, WY, https://drive.google.com/file/d/0BwGs7_2V6bvEOThHUldzZ0JMWW8/view?usp=drive_link&resourcekey=0-Pb9eYbwJiUgrrwjYYFyk-w. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources.

H80-16/038 Wilking Collection, Triangle Service Station Addition, Casper, WY, https://drive.google.com/file/d/0BwGs7_2V6bvEOThHUldzZ0JMWW8/view?usp=drive_link&resourcekey=0-Pb9eYbwJiUgrrwjYYFyk-w. Wyoming State Archives, Wyoming Cultural Resources Division, Wyoming Department of State Parks & Cultural Resources. https://wyocomet.wyo.gov/repositories/2/digital_objects/4338 Accessed November 23, 2024.