(1992). Dropout Prevention in Vocational Education Findings from the First Two Years of the Demonstration / Becky Jon Hayward. [microform].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dropout Prevention in Vocational Education Findings from the First Two Years of the Demonstration / Becky Jon Hayward. [microform]. 1992.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Dropout Prevention in Vocational Education Findings from the First Two Years of the Demonstration / Becky Jon Hayward. [microform]. 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.