Railroad construction :
Webb, Walter Loring 1863-,
Railroad construction : Theory and practice : A text-book for the use of students in colleges and technical schools / By Walter loring webb - 4 # ed. rev. and enl. - xviii, 777 páginas
Ferrocarriles--Diseño y construcción
TF200 / W43 1911
Railroad construction : Theory and practice : A text-book for the use of students in colleges and technical schools / By Walter loring webb - 4 # ed. rev. and enl. - xviii, 777 páginas
Ferrocarriles--Diseño y construcción
TF200 / W43 1911