Clark, O. E. J. (1971). Chemistry. Hamlyn.
Chicago Edition CitationClark, O E John. Chemistry. London: Hamlyn, 1971.
ציטוט MLAClark, O E John. Chemistry. Hamlyn, 1971.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.
Clark, O. E. J. (1971). Chemistry. Hamlyn.
Chicago Edition CitationClark, O E John. Chemistry. London: Hamlyn, 1971.
ציטוט MLAClark, O E John. Chemistry. Hamlyn, 1971.