توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

INTERNATIONAL LABOUR OFFICE. (1977). CAREER PLANNIING AND DEVELOPMENT: MANY DEVELOPMENT SERIES: NO: 12. INTERNATIONAL LABOUR ORGANIZATION.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

INTERNATIONAL LABOUR OFFICE. CAREER PLANNIING AND DEVELOPMENT: MANY DEVELOPMENT SERIES: NO: 12. GENEVA: INTERNATIONAL LABOUR ORGANIZATION, 1977.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

INTERNATIONAL LABOUR OFFICE. CAREER PLANNIING AND DEVELOPMENT: MANY DEVELOPMENT SERIES: NO: 12. INTERNATIONAL LABOUR ORGANIZATION, 1977.