توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Institution of Mining and Metallurgy (Great Britain) & Ryan, W. (1968). Non-ferrous extractive metallurgy in the United Kingdom. The Institution of Mining and Metallurgy.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Institution of Mining and Metallurgy (Great Britain) و W. Ryan. Non-ferrous Extractive Metallurgy in the United Kingdom. London: The Institution of Mining and Metallurgy, 1968.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Institution of Mining and Metallurgy (Great Britain) و W. Ryan. Non-ferrous Extractive Metallurgy in the United Kingdom. The Institution of Mining and Metallurgy, 1968.