APA
"UNITED NATIONS E. A. S. A. o., "UNITED NATIONS E. A. S. A. o., . (1957). "Lignite resources of Asia and the far east, and their exploration and utilization.". New: York United Nations USA.
Chicago
"UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS(Deptt of-).", "UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS(Deptt of-).", . 1957. "Lignite resources of Asia and the far east, and their exploration and utilization.". New: York United Nations USA.
Harvard
"UNITED NATIONS E. A. S. A. o., "UNITED NATIONS E. A. S. A. o., . (1957). "Lignite resources of Asia and the far east, and their exploration and utilization.". New: York United Nations USA.
MLA
"UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS(Deptt of-).", "UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS(Deptt of-).", . "Lignite resources of Asia and the far east, and their exploration and utilization.". New: York United Nations USA. 1957.