Riegel, R. E. (1948). Tests for United States of America. C. Scribner's Sons.
Chicago Style (17th ed.) CitationRiegel, Robert Edgar. Tests for United States of America. New York : Chicago [etc.]: C. Scribner's Sons, 1948.
ציטוט MLARiegel, Robert Edgar. Tests for United States of America. C. Scribner's Sons, 1948.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.