(1970). Proceedings of the 4th International Conference on input-output techniques, Geneva, 8-12 January,1968. North-Holland.
Cita Chicago (17th ed.)Proceedings of the 4th International Conference on Input-output Techniques, Geneva, 8-12 January,1968. Amsterdam: North-Holland, 1970.
Cita MLA (9th ed.)Proceedings of the 4th International Conference on Input-output Techniques, Geneva, 8-12 January,1968. North-Holland, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.