organization for economic cooperation. (1973). .maintenance of rural roads: Principles of a road maintenance management system;a report preparedborganization for economic coopertion and development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रorganization for economic cooperation. .maintenance of Rural Roads: Principles of a Road Maintenance Management System;a Report Preparedborganization for Economic Coopertion and Development. 1st ed. | .Paris, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रorganization for economic cooperation. .maintenance of Rural Roads: Principles of a Road Maintenance Management System;a Report Preparedborganization for Economic Coopertion and Development. 1973.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.