IFIP Working Conference on Symbol Manipulation Language, Pisa, 1966, & Bobrow, D. G. (1968). Symbol manipulation languages and techniques: Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. North-Holland Publishing Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)IFIP Working Conference on Symbol Manipulation Language, Pisa, 1966, و Daniel G. Bobrow. Symbol Manipulation Languages and Techniques: Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. Armsterdam: North-Holland Publishing Company, 1968.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)IFIP Working Conference on Symbol Manipulation Language, Pisa, 1966, و Daniel G. Bobrow. Symbol Manipulation Languages and Techniques: Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. North-Holland Publishing Company, 1968.