Besterman, T. (1971). A world bibliography of bibliographies and of bibliographical catalogues, calendars, abstracts, digests, indexes, and the like (Fourth edition. Revised and Greatly Enlarged Throughout.). Rowman and Littlefield.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Besterman, Theodore. A World Bibliography of Bibliographies and of Bibliographical Catalogues, Calendars, Abstracts, Digests, Indexes, and the like. Fourth edition. Revised and Greatly Enlarged Throughout. Totowa, N.J.: Rowman and Littlefield, 1971.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Besterman, Theodore. A World Bibliography of Bibliographies and of Bibliographical Catalogues, Calendars, Abstracts, Digests, Indexes, and the like. Fourth edition. Revised and Greatly Enlarged Throughout. Rowman and Littlefield, 1971.