GeoDrilling international.
London, England : Mining Journal, Ltd.,
London : Aspermont Media
1993-
Some issues include: computer laser optical disc ; 4 3/4 in.
Description based on: Vol. 1, no. 2 (Apr. 1993); title from cover.
Coal abstracts
Some issues include supplements.
Boring
Engineering geology
Rock mechanics
Soil mechanics
Geodrilling