Cita APA (7a ed.)

Summers, A. L. (1922). Anthracite and the anthracite industry. Sir I. Pitman & sons, ltd.

Cita Chicago Style (17a ed.)

Summers, A. Leonard. Anthracite and the Anthracite Industry. London, ; New York [etc.]: Sir I. Pitman & sons, ltd, 1922.

Cita MLA (8a ed.)

Summers, A. Leonard. Anthracite and the Anthracite Industry. Sir I. Pitman & sons, ltd, 1922.