APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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