Não informado. (1981). Advances in Space Research. International Council of Scientific Unions, Committee on Space Research.
Chicago-Zitierstil (17. Ausg.)Não informado. Advances in Space Research. Oxford, Inglaterra: International Council of Scientific Unions, Committee on Space Research, 1981.
MLA-Zitierstil (8. Ausg.)Não informado. Advances in Space Research. International Council of Scientific Unions, Committee on Space Research, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.