Collison, R. L. (1972). Indexes and indexing: guide to the indexing of books and collections of books, periodicals, music, recordings, films and other material: With a reference section and suggestions for further reading (Fourth edition.). Ernest Benn Ltd; J. De Graff.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Collison, Robert Lewis. Indexes and Indexing: Guide to the Indexing of Books and Collections of Books, Periodicals, Music, Recordings, Films and Other Material: With a Reference Section and Suggestions for Further Reading. Fourth edition. London : New York: Ernest Benn Ltd; J. De Graff, 1972.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Collison, Robert Lewis. Indexes and Indexing: Guide to the Indexing of Books and Collections of Books, Periodicals, Music, Recordings, Films and Other Material: With a Reference Section and Suggestions for Further Reading. Fourth edition. Ernest Benn Ltd; J. De Graff, 1972.