توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Ducoff, L. J. (1960). Human resources of Central America, Panama and Mexico, 1950-1980, in relation to some aspects of economic development. United Nations Economic Commission for Latin America.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Ducoff, Louis Joseph. Human Resources of Central America, Panama and Mexico, 1950-1980, in Relation to Some Aspects of Economic Development. [New York]: United Nations Economic Commission for Latin America, 1960.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Ducoff, Louis Joseph. Human Resources of Central America, Panama and Mexico, 1950-1980, in Relation to Some Aspects of Economic Development. United Nations Economic Commission for Latin America, 1960.