Glover, A. (1966). Enrich your english: Exercises designed to build up a student's vocabulary in a variety of Ways. J.M.Dent.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Glover, A.J. Enrich Your English: Exercises Designed to Build Up a Student's Vocabulary in a Variety of Ways. London: J.M.Dent, 1966.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Glover, A.J. Enrich Your English: Exercises Designed to Build Up a Student's Vocabulary in a Variety of Ways. J.M.Dent, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.