Citação norma APA

Hnizdo, E. (1990). Combined effect of silica dust and tobacco smoking on mortality from chronic obstructive lung disease in gold miners.

Citação norma Chicago

Hnizdo, E. Combined Effect of Silica Dust and Tobacco Smoking On Mortality From Chronic Obstructive Lung Disease in Gold Miners. 1990.

Citação norma MLA

Hnizdo, E. Combined Effect of Silica Dust and Tobacco Smoking On Mortality From Chronic Obstructive Lung Disease in Gold Miners. 1990.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.