Não informado. Road documentation for developing countries: A SELECTION OF IRRD ABSTRACTS. Organization for Economic Co-operation and Development.
Citação do estilo Chicago (17ª ed.)Não informado. Road Documentation for Developing Countries: A SELECTION OF IRRD ABSTRACTS. Berkshire, Inglaterra: Organization for Economic Co-operation and Development.
Citação MLA (8ª ed.)Não informado. Road Documentation for Developing Countries: A SELECTION OF IRRD ABSTRACTS. Organization for Economic Co-operation and Development.
Atenció: Aquestes cites poden no estar 100% correctes.