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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIFIP Working Conference on Symbol Manipulation Language, Pisa, 1966, और Daniel G. Bobrow. Symbol Manipulation Languages and Techniques: Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. Armsterdam: North-Holland Publishing Company, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIFIP Working Conference on Symbol Manipulation Language, Pisa, 1966, और Daniel G. Bobrow. Symbol Manipulation Languages and Techniques: Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. North-Holland Publishing Company, 1968.