International symposium on programming language implementation and logic programming :Tallinn, Estonie, Bruynooghe, M., & Penjam, J. Programming language implementation and logic programming: 5th International Symposium, PLILP '93 Tallinn, Estonia, August 25 27, 1993 : proceedings. Springer.
Cita Chicago (17th ed.)International symposium on programming language implementation and logic programming :Tallinn, Estonie, Maurice Bruynooghe, i Jaan Penjam. Programming Language Implementation and Logic Programming: 5th International Symposium, PLILP '93 Tallinn, Estonia, August 25 27, 1993 : Proceedings. Berlin [etc.]: Springer.
Cita MLA (8th ed.)International symposium on programming language implementation and logic programming :Tallinn, Estonie, et al. Programming Language Implementation and Logic Programming: 5th International Symposium, PLILP '93 Tallinn, Estonia, August 25 27, 1993 : Proceedings. Springer.