Olsen, J. C. (1904). A text-book of quantitative chemical analysis by gravimetric, electrolytic, volumetric and gasometric methods: With seventy-two laboratory exercises giving the analysis of pure salts, alloys, minerals and technical products. Van Nostrand.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Olsen, John C. A Text-book of Quantitative Chemical Analysis by Gravimetric, Electrolytic, Volumetric and Gasometric Methods: With Seventy-two Laboratory Exercises Giving the Analysis of Pure Salts, Alloys, Minerals and Technical Products. New York: Van Nostrand, 1904.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Olsen, John C. A Text-book of Quantitative Chemical Analysis by Gravimetric, Electrolytic, Volumetric and Gasometric Methods: With Seventy-two Laboratory Exercises Giving the Analysis of Pure Salts, Alloys, Minerals and Technical Products. Van Nostrand, 1904.