APA (7e ed.) Bronvermelding

Gumz, W. 1. (1950). Gas producers and blast furnaces; theory and methods of calculation. Wiley.

Chicago (17e ed.) Bronvermelding

Gumz, Wilhelm 1901. Gas Producers and Blast Furnaces; Theory and Methods of Calculation. New York: Wiley, 1950.

MLA (9e ed.) Bronvermelding

Gumz, Wilhelm 1901. Gas Producers and Blast Furnaces; Theory and Methods of Calculation. Wiley, 1950.