Jordan, J. R., Logue, G., & Anderson, G. M. (1980). A study of road maintenance standards, costing and management. National Association of Australian State Road Authorities.
Cita Chicago (17th ed.)Jordan, J. R., G. Logue, i G. M. Anderson. A Study of Road Maintenance Standards, Costing and Management. Brickfield Hill, N.S.W.: National Association of Australian State Road Authorities, 1980.
Cita MLA (8th ed.)Jordan, J. R., et al. A Study of Road Maintenance Standards, Costing and Management. National Association of Australian State Road Authorities, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.