استشهادات التسجيلة

توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)
Araújo Roberto. (1973). Portugal, the country that has contributed most to geographic knowledge of the globe, in the course of one century she discovered and explored nearly two thirds of the inhabited globe. Secretaria de Estado da Informação e Turismo.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)
Araújo Roberto. Portugal, the Country That Has Contributed Most to Geographic Knowledge of the Globe, in the Course of One Century She Discovered and Explored Nearly Two Thirds of the Inhabited Globe. Secretaria de Estado da Informação e Turismo, 1973.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)
Araújo Roberto. Portugal, the Country That Has Contributed Most to Geographic Knowledge of the Globe, in the Course of One Century She Discovered and Explored Nearly Two Thirds of the Inhabited Globe. Secretaria de Estado da Informação e Turismo, 1973.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.