Palmer-Leon, A. A. (1981). Toward a description of foreigner register: An analysis of variation in the speech of native teachers of English as a foreign language.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Palmer-Leon, Armando Antonio. Toward a Description of Foreigner Register: An Analysis of Variation in the Speech of Native Teachers of English as a Foreign Language. 1981.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Palmer-Leon, Armando Antonio. Toward a Description of Foreigner Register: An Analysis of Variation in the Speech of Native Teachers of English as a Foreign Language. 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.