APA

Institution of Gas Engineers, . (1961). List of communications published since May, 1930 / Institution of Gas Engineers. London: Inst. of Gas Engineers.

Chicago

Institution of Gas Engineers, . 1961. List of communications published since May, 1930 / Institution of Gas Engineers. London: Inst. of Gas Engineers.

Harvard

Institution of Gas Engineers, . (1961). List of communications published since May, 1930 / Institution of Gas Engineers. London: Inst. of Gas Engineers.

MLA

Institution of Gas Engineers, . List of communications published since May, 1930 / Institution of Gas Engineers. London: Inst. of Gas Engineers. 1961.