Curtis M. Brown, W. G. R. Evidence and procedures for boundary location. John Wiley and Sons.
Dyfyniad Arddull ChicagoCurtis M. Brown, Water G. Robillard. Evidence and Procedures for Boundary Location. John Wiley and Sons.
Dyfyniad MLACurtis M. Brown, Water G. Robillard. Evidence and Procedures for Boundary Location. John Wiley and Sons.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.