NOTE: THIS IS A VERY OLD PUBLICATION AND A VERY POOR QUALITY COPY. WE WILL REPLACE IT WITH A CLEARER IMAGE AS SOON AS WE ARE ABLE.
WE APOLOGIZE FOR ANY INCONVENIENCE.
Bibliographic Reference | Sevison, Z.E., [n.d.], Asphalt oil treated highways: Geological Survey of Wyoming [Wyoming State Geological Survey] Mineral Report UN-43, 9 p. |