↑ Recreation of Wöhler’s Synthesis of Urea: An Undergraduate Organic Laboratory Exercise James D. Batchelor, Everett E. Carpenter, Grant N. Holder, Cassandra T. Eagle, Jon Fielder, Jared Cummings The Chemical Educator 1/Vol.3,NO.6 1998 ISSN 1430-4171 Online articleLưu trữ 2006-09-30 tại Wayback Machine
1 2 3 Peter M. Schalke1, "Cyanates, Inorganic Salts" Ullmann's Encyclopedia of Industrial Chemistry2006, Wiley-VCH, Weinheim. doi:10.1002/14356007.a08_157.pub2. Article Online Posting Date: ngày 15 tháng 7 năm 2006
↑ INEOS Paraform GmbH, Potassium Cyanate (KOCN) product information. Online version accessed on 2009-06-30.