295,096 ESTIMATED Estimated world requirements of narcotic drugs and estimates of world production of opium in 1977. Geneva 1977 United Nations 4° International Narcotics Control Board /Tyt. i tekst również w jęz. fr, i hisz./ Suppl. 9, s, 11, nlb. 1 Suppl. 10, s. 12, nlb. 2 Suppl. 11. s. 8, nlb. 2 suppl. 12. s. 11, nlb.1