Não informado. (2001). Special report. Department of Scientific and Industrial Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Special Report. London: Department of Scientific and Industrial Research, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Special Report. Department of Scientific and Industrial Research, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.