Cita APA

Ryder, R., Lyons, J. P., Campbell, H., & Gough, J. (1970). Emphysema in Coal Workers' Pneumoconiosis.

Citación estilo Chicago

Ryder, R., J. P. Lyons, H. Campbell, y J. Gough. Emphysema in Coal Workers' Pneumoconiosis. 1970.

Cita MLA

Ryder, R., J. P. Lyons, H. Campbell, y J. Gough. Emphysema in Coal Workers' Pneumoconiosis. 1970.