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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিIFIP Working Conference on Symbol Manipulation Language, Pisa, 1966, এবং Daniel G. Bobrow. Symbol Manipulation Languages and Techniques: Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. Armsterdam: North-Holland Publishing Company, 1968.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিIFIP Working Conference on Symbol Manipulation Language, Pisa, 1966, এবং Daniel G. Bobrow. Symbol Manipulation Languages and Techniques: Proceedings of the IFIP Working Conference on Symbol Manipulation Languages. North-Holland Publishing Company, 1968.