MTU-081, Sigma Rho Fraternity Records, Michigan Technological University Archives and Copper Country Historical Collections, Houghton, Michigan.
MTU-081, Sigma Rho Fraternity Records, Michigan Technological University Archives and Copper Country Historical Collections, Houghton, Michigan. https://michigantech.libraryhost.com/repositories/2/resources/697 Accessed November 21, 2024.