Não informado. (1949). Mining transactions. American Institute of Mining, Metallurgical and Petroleum Engineers.
Citação do estilo Chicago (17ª ed.)Não informado. Mining Transactions. New York: American Institute of Mining, Metallurgical and Petroleum Engineers, 1949.
Citação MLA (8ª ed.)Não informado. Mining Transactions. American Institute of Mining, Metallurgical and Petroleum Engineers, 1949.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.