Não informado. (1929). Heating and Ventilating. National Trade Journals.
Style de citation Chicago (17e éd.)Não informado. Heating and Ventilating. New York: National Trade Journals, 1929.
Style de citation MLA (8e éd.)Não informado. Heating and Ventilating. National Trade Journals, 1929.
Attention : ces citations peuvent ne pas être correctes à 100%.