Dougherty, M. M. (1967). Instant spelling dictionary: 25,000 words spelled, divided, accented, including complete rules for spelling, word division, punctuation, capitalization, abbreviating, word compounding, forms of address, and proofreader's marks (New Third edition.). Career Institute.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Dougherty, Margaret M. Instant Spelling Dictionary: 25,000 Words Spelled, Divided, Accented, Including Complete Rules for Spelling, Word Division, Punctuation, Capitalization, Abbreviating, Word Compounding, Forms of Address, and Proofreader's Marks. New Third edition. New Jersey: Career Institute, 1967.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Dougherty, Margaret M. Instant Spelling Dictionary: 25,000 Words Spelled, Divided, Accented, Including Complete Rules for Spelling, Word Division, Punctuation, Capitalization, Abbreviating, Word Compounding, Forms of Address, and Proofreader's Marks. New Third edition. Career Institute, 1967.