IMCO/FAO/UNESCO/WMO/WHO/IAEA/UN Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP). (1972). Report of the fourth session held at WMO Headquarters, Geneva, 18-23 September 1972. World Meteorological Organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)IMCO/FAO/UNESCO/WMO/WHO/IAEA/UN Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP). Report of the Fourth Session Held at WMO Headquarters, Geneva, 18-23 September 1972. Geneva: World Meteorological Organization, 1972.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)IMCO/FAO/UNESCO/WMO/WHO/IAEA/UN Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP). Report of the Fourth Session Held at WMO Headquarters, Geneva, 18-23 September 1972. World Meteorological Organization, 1972.