Selikoff, I., & Key, M. M. (1972). Coal workers ́ pneumoconiosis. New York Academy of Sciences.
Cita Chicago Style (17a ed.)Selikoff, Irving, y Marcus M. Key. Coal Workers ́ Pneumoconiosis. New York: New York Academy of Sciences, 1972.
Cita MLA (8a ed.)Selikoff, Irving, y Marcus M. Key. Coal Workers ́ Pneumoconiosis. New York Academy of Sciences, 1972.
Precaución: Estas citas no son 100% exactas.