توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Blokland, J., & Somermeyer, W. H. (1970). Effects of family size and composition on family expenditure according to an allocation model. Econometric Inst., Netherlands School of Economics.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Blokland, J., و W. H. Somermeyer. Effects of Family Size and Composition on Family Expenditure According to an Allocation Model. Rotterdam: Econometric Inst., Netherlands School of Economics, 1970.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Blokland, J., و W. H. Somermeyer. Effects of Family Size and Composition on Family Expenditure According to an Allocation Model. Econometric Inst., Netherlands School of Economics, 1970.