Não informado. (1970). Advances in materials technology monitor. United Nations, Industrial Development Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Advances in Materials Technology Monitor. Vienna: United Nations, Industrial Development Organization, 1970.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Advances in Materials Technology Monitor. United Nations, Industrial Development Organization, 1970.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.