Canada. Royal Commission on Grain Futures & Stamp, J. (1931). Evidence and proceedings before the commission to inquire into trading in grain futures. April, 1931. Grain Trade News.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Canada. Royal Commission on Grain Futures و Josiah Stamp. Evidence and Proceedings Before the Commission to Inquire into Trading in Grain Futures. April, 1931. Winnipeg, Canada: Grain Trade News, 1931.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Canada. Royal Commission on Grain Futures و Josiah Stamp. Evidence and Proceedings Before the Commission to Inquire into Trading in Grain Futures. April, 1931. Grain Trade News, 1931.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.