Perry, J. S. (1996). Understanding our planet: An overview of the major scientific activities of ICSU and its partners that address global environmental change (Second edition.). International Council of Scientific Unions.
Citação norma ChicagoPerry, John S. Understanding Our Planet: An Overview of the Major Scientific Activities of ICSU and Its Partners That Address Global Environmental Change. Second edition. Paris, France: International Council of Scientific Unions, 1996.
Citação norma MLAPerry, John S. Understanding Our Planet: An Overview of the Major Scientific Activities of ICSU and Its Partners That Address Global Environmental Change. Second edition. International Council of Scientific Unions, 1996.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.