APA

International Union of Railways, Office for Research and Experiments O. & Report D 161/RP 2. (1987). Assessment of the service life of rails from their defect occurrence. Utrecht: International Union of Railways.

Chicago

International Union of Railways, Office for Research and Experiments ORE and Report D 161/RP 2. 1987. Assessment of the service life of rails from their defect occurrence. Utrecht: International Union of Railways.

Harvard

International Union of Railways, Office for Research and Experiments O. and Report D 161/RP 2. (1987). Assessment of the service life of rails from their defect occurrence. Utrecht: International Union of Railways.

MLA

International Union of Railways, Office for Research and Experiments ORE and Report D 161/RP 2. Assessment of the service life of rails from their defect occurrence. Utrecht: International Union of Railways. 1987.