Cita APA

Francis, W. (1954). Coal; its formation and composition. London: Edward Arnold.

Citación estilo Chicago

Francis, Wilfrid. Coal; Its Formation and Composition. London: Edward Arnold, 1954.

Cita MLA

Francis, Wilfrid. Coal; Its Formation and Composition. London: Edward Arnold, 1954.

Precaución: Estas citas no son 100% exactas.