Dyfyniad APA

gudmundsson,henirk, hall,raph p, marsden,greg, & zietsman,josias. sustainable transportation: Indicators, frameworks, and performance managemnt. springer.

Dyfyniad Arddull Chicago

gudmundsson,henirk, hall,raph p, marsden,greg, and zietsman,josias. Sustainable Transportation: Indicators, Frameworks, and Performance Managemnt. germany : 2016: springer.

Dyfyniad MLA

gudmundsson,henirk, et al. Sustainable Transportation: Indicators, Frameworks, and Performance Managemnt. springer.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.