APA Style

ETTRE, S. (1973). ENCYCLOPEDIA OF INDUSTRIAL CHEMICAL ANALYSIS (1). New York: Interscience Publishers (a division of John Wiley & Sons, Inc.).

MLA Style

ETTRE, S.. "ENCYCLOPEDIA OF INDUSTRIAL CHEMICAL ANALYSIS". 1 New York: Interscience Publishers (a division of John Wiley & Sons, Inc.), 1973. المصادر المراجع.