Erf, R. K. E. b. (1974). Holographic non destructive testing. Academic press.
Chicago Edition CitationErf, Robert K Ed. by. Holographic Non Destructive Testing. New York: Academic press, 1974.
ציטוט MLAErf, Robert K Ed. by. Holographic Non Destructive Testing. Academic press, 1974.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.