Standard boiler room questions & answers - Elonka, Stephen Michael; Higgins, Alex. Boiler room questions & answers; Higgins, Alex. Boiler room questions and answers (New York: McGraw-Hill, 1982)
Revision of: Boiler room questions and answers / Alex Higgins, Stephen Michael Elonka. 2nd ed.
Keywords: Steam -- boilers -- Miscellanea