classification : Auxiliary sciences of history /
the Library of Congress.
- 2nd. ed.
- [Washington, D.C.] : The library of Congress, 1955.
- xi, 147 p. ; 28 cm.
Classification--Books--Highway engineering.
Classification--Books--Traffic engineering.
025.4 / LIC
Classification--Books--Highway engineering.
Classification--Books--Traffic engineering.
025.4 / LIC