Shields, C. D., & Shields, C. D. (1961). Boilers: Types, characteristics, and functions. New York, New York: McGraw-Hill.
Chicago Style CitationShields, Carl D., and Carl D. Shields. Boilers: Types, Characteristics, and Functions. New York, New York: McGraw-Hill, 1961.
MLA CitationShields, Carl D., and Carl D. Shields. Boilers: Types, Characteristics, and Functions. New York, New York: McGraw-Hill, 1961.
Warning: These citations may not always be 100% accurate.