British standards institutions. (1977). Handbook for information systems and services. UNESCO.
Chicago Edition CitationBritish standards institutions. Handbook for Information Systems and Services. Paris: UNESCO, 1977.
ציטוט MLABritish standards institutions. Handbook for Information Systems and Services. UNESCO, 1977.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.