Richards, W. G. (1986). The problems of chemistry. Oxford University Press, Inc..
Chicago Style (17th ed.) CitationRichards, W. Graham. The Problems of Chemistry. New York: Oxford University Press, Inc., 1986.
ציטוט MLARichards, W. Graham. The Problems of Chemistry. Oxford University Press, Inc., 1986.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.