توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Ibbotson Associates (Firm), R.G. Ibbotson Associates (Firm), & Capital Market Research Center (Chicago, Ill.). Stocks, bonds, bills, and inflation ... yearbook. R.G. Ibbotson Associates.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ibbotson Associates (Firm), R.G. Ibbotson Associates (Firm), و Ill.) Capital Market Research Center (Chicago. Stocks, Bonds, Bills, and Inflation ... Yearbook. Chicago, Ill.: R.G. Ibbotson Associates.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Ibbotson Associates (Firm), et al. Stocks, Bonds, Bills, and Inflation ... Yearbook. R.G. Ibbotson Associates.