Sturges, P. (1985). Introduction to librarianship and documentation: Teaching and learning materials for the long vacation courses at the University of Botswana, 1984 to 1987 (Pilot ed.). University of Botswana Department of Library Studies.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sturges, Paul. Introduction to Librarianship and Documentation: Teaching and Learning Materials for the Long Vacation Courses at the University of Botswana, 1984 to 1987. Pilot ed. Botswana: University of Botswana Department of Library Studies, 1985.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sturges, Paul. Introduction to Librarianship and Documentation: Teaching and Learning Materials for the Long Vacation Courses at the University of Botswana, 1984 to 1987. Pilot ed. University of Botswana Department of Library Studies, 1985.