gudmundsson,henirk, hall,raph p, marsden,greg, & zietsman,josias. sustainable transportation: Indicators, frameworks, and performance managemnt. springer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रgudmundsson,henirk, hall,raph p, marsden,greg, और zietsman,josias. Sustainable Transportation: Indicators, Frameworks, and Performance Managemnt. germany : 2016: springer.
एमएलए (9वां संस्करण) प्रशस्ति पत्रgudmundsson,henirk, et al. Sustainable Transportation: Indicators, Frameworks, and Performance Managemnt. springer.
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