(1983). Economic impact. Research: Path to technological progress. Washington.
Trích dẫn kiểu ChicagoEconomic Impact. Research: Path to Technological Progress. Washington, 1983.
ציטוט MLAEconomic Impact. Research: Path to Technological Progress. Washington, 1983.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.