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keyword: two-lane highways – 2 free books.

doab These books are included in the Directory of Open Access Books. This means that they have been peer-reviewed and are of interest to scholars.

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Encyclopedia of Engineering

Raffaele Barretta et al. (editors)

AVAILABLE!
Book cover
Raffaele Barretta et al. (editors)

Vehicle and Traffic Safety

Guzek Marek et al. (editors)

AVAILABLE!
Book cover
Guzek Marek et al. (editors)