APA (7th ed.) Citation

International Union of Geological Sciences, International Geological Correlation Programme, & Unesco. (1982). Report of the International Geological Correlation Programme (IGCP). unesco [for the] International Geological Correlation Programme [in co-operation with the] International Union of Geological Sciences.

Chicago Style (17th ed.) Citation

International Union of Geological Sciences, International Geological Correlation Programme, and Unesco. Report of the International Geological Correlation Programme (IGCP). Paris: unesco [for the] International Geological Correlation Programme [in co-operation with the] International Union of Geological Sciences, 1982.

MLA (9th ed.) Citation

International Union of Geological Sciences, et al. Report of the International Geological Correlation Programme (IGCP). unesco [for the] International Geological Correlation Programme [in co-operation with the] International Union of Geological Sciences, 1982.