Elonka, S. M. (1973). Standard boiler operators' questions and answers. Tata Mc Graw - Hill.
シカゴスタイル引用形Elonka, Stephen Michael. Standard Boiler Operators' Questions and Answers. Mumbai: Tata Mc Graw - Hill, 1973.
MLA引用形式Elonka, Stephen Michael. Standard Boiler Operators' Questions and Answers. Tata Mc Graw - Hill, 1973.
警告: この引用は必ずしも正確ではありません.