APA ציטוט

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

Chicago Edition Citation

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

ציטוט MLA

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