APA
UNITED NATIONS E. C., UNITED NATIONS E. C., . (1980). Measures for saving materials in engineering industries. New York: United Nations USA.
Chicago
UNITED NATIONS ECONOMIC COMMISSION, UNITED NATIONS ECONOMIC COMMISSION, . 1980. Measures for saving materials in engineering industries. New York: United Nations USA.
Harvard
UNITED NATIONS E. C., UNITED NATIONS E. C., . (1980). Measures for saving materials in engineering industries. New York: United Nations USA.
MLA
UNITED NATIONS ECONOMIC COMMISSION, UNITED NATIONS ECONOMIC COMMISSION, . Measures for saving materials in engineering industries. New York: United Nations USA. 1980.