Tunneling, the state of the art
By: a review and evaluation of current tunneling techniques and costs, with emphasis on their application to urban rapid-transit systems in the U.S.A.
Contributors: Mayo (Robert S.) Associates, Lancaster, Pa; United States. Dept. of Housing and Urban Development
Publisher: U.S. Dept. of Housing and Urban Development [Reproduced by the Clearinghouse for Federal Scientific & Technical Information, Springfield, Va.]
Published: 1968
Place of publication: [Washington]
Language: eng
Number of pages: 263
Subjects: Tunneling; Urban transportation; Subways; Local transit
Other titles: A review and evaluation of current tunneling techniques and costs
Notes: "Prepared for the U.S. Dept. of Housing and Urban Development under Contract H-766 by Robert S. Mayo & Associates."

"PB 178036."

Includes bibliographies