APA aipamena

Raistric, A. (1939). Nature and origin of coal and coal seams. The English University press.

Chicago Style aipamena

Raistric, A. Nature and Origin of Coal and Coal Seams. LOndon: The English University press, 1939.

MLA aipamena

Raistric, A. Nature and Origin of Coal and Coal Seams. The English University press, 1939.