Elonka, S. M., & Robinson, J. F. (1959). Standard plant operator's questions and answers : a modern license- examination review course for plant, refrigeration, steam, diesel, nuclear, electrical and building engineers / by S.E. Elonka and J.F. Robinson: A modern license- examination review course for plant, refrigeration, steam, diesel, nuclear, electrical and building engineers. McGraw-Hill.
Chicago Style (17th ed.) CitationElonka, Stephen Michael, and J. F. Robinson. Standard Plant Operator's Questions and Answers : A Modern License- Examination Review Course for Plant, Refrigeration, Steam, Diesel, Nuclear, Electrical and Building Engineers / by S.E. Elonka and J.F. Robinson: A Modern License- Examination Review Course for Plant, Refrigeration, Steam, Diesel, Nuclear, Electrical and Building Engineers. McGraw-Hill, 1959.
MLA (9th ed.) CitationElonka, Stephen Michael, and J. F. Robinson. Standard Plant Operator's Questions and Answers : A Modern License- Examination Review Course for Plant, Refrigeration, Steam, Diesel, Nuclear, Electrical and Building Engineers / by S.E. Elonka and J.F. Robinson: A Modern License- Examination Review Course for Plant, Refrigeration, Steam, Diesel, Nuclear, Electrical and Building Engineers. McGraw-Hill, 1959.