"Properties". www.sec.gov. Retrieved July 2, 2020.
skyways.lib.ks.us
Blackmar, Frank W (1912). "Blue Rapids". Kansas: A Cyclopedia of State History... Vol. 1. Chicago: Standard Pub. Co. pp. 197–198. OCLC11274216. Archived from the original on October 10, 2006.
Blackmar, Frank W (1912). "Blue Rapids". Kansas: A Cyclopedia of State History... Vol. 1. Chicago: Standard Pub. Co. pp. 197–198. OCLC11274216. Archived from the original on October 10, 2006.
Blackmar, Frank W (1912). "Blue Rapids". Kansas: A Cyclopedia of State History... Vol. 1. Chicago: Standard Pub. Co. pp. 197–198. OCLC11274216. Archived from the original on October 10, 2006.