Road materials in the Willamette Valley
Edition: 2nd ed.
Series: Bulletin / Oregon State Bureau of Mines -- no. 1, Jan. 1911; Bulletin (Oregon State Bureau of Mines) -- no. 1.
Publisher: Oregon State Bureau of Mines
Published: 1912
Place of publication: Corvallis, Or
Language: eng
Number of pages: 63
Subjects: Road materials