Siemon, K. O. G. (1965). Directory of safety and construction codes: U.S.A., States and cities ([1st ed.].). Code Pub. Co..
Chicago Style (17th ed.) CitationSiemon, Karl Otto Gustav. Directory of Safety and Construction Codes: U.S.A., States and Cities. [1st ed.]. Westfield, N.J.: Code Pub. Co., 1965.
MLA (9th ed.) CitationSiemon, Karl Otto Gustav. Directory of Safety and Construction Codes: U.S.A., States and Cities. [1st ed.]. Code Pub. Co., 1965.
Warning: These citations may not always be 100% accurate.