APA

American National Standard Institute A., American National Standard Institute A., . (2000). Diaphragm type gas displacement meters (500 Cubic feet per hour capacity and over). Washington: American Gas Association, AGA.

Chicago

American National Standard Institute ANSI, American National Standard Institute ANSI, . 2000. Diaphragm type gas displacement meters (500 Cubic feet per hour capacity and over). Washington: American Gas Association, AGA.

Harvard

American National Standard Institute A., American National Standard Institute A., . (2000). Diaphragm type gas displacement meters (500 Cubic feet per hour capacity and over). Washington: American Gas Association, AGA.

MLA

American National Standard Institute ANSI, American National Standard Institute ANSI, . Diaphragm type gas displacement meters (500 Cubic feet per hour capacity and over). Washington: American Gas Association, AGA. 2000.