توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Soles, G. H. A consideration of the factors involved in native language acquisition and foreign language learning and their relevence to modern language methodology.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Soles, Graham H. A Consideration of the Factors Involved in Native Language Acquisition and Foreign Language Learning and Their Relevence to Modern Language Methodology. 1979.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Soles, Graham H. A Consideration of the Factors Involved in Native Language Acquisition and Foreign Language Learning and Their Relevence to Modern Language Methodology.