Cochrane Corporation (Philadelphia, Pa.). (1921). Finding and stopping waste in modern boiler rooms: A reference manual to aid the owner, manager and operator in securing and maintaining boiler plant economy (2d ed., rev. and enl.). Cochrane corporation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cochrane Corporation (Philadelphia, Pa.). Finding and Stopping Waste in Modern Boiler Rooms: A Reference Manual to Aid the Owner, Manager and Operator in Securing and Maintaining Boiler Plant Economy. 2d ed., rev. and enl. Philadelphia, Pa.: Cochrane corporation, 1921.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cochrane Corporation (Philadelphia, Pa.). Finding and Stopping Waste in Modern Boiler Rooms: A Reference Manual to Aid the Owner, Manager and Operator in Securing and Maintaining Boiler Plant Economy. 2d ed., rev. and enl. Cochrane corporation, 1921.