Não informado. (1981). Advances in Space Research. International Council of Scientific Unions, Committee on Space Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Advances in Space Research. Oxford, Inglaterra: International Council of Scientific Unions, Committee on Space Research, 1981.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Advances in Space Research. International Council of Scientific Unions, Committee on Space Research, 1981.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.