TY  - BOOK
T1  - Deep well drilling;the principles and practices of deep well drilling and a hand book of useful information for the well driller,
DA  - c1925.
CY  - Houston, Tex.,
AU  - Jeffery, Walter Henry,
CN  - TD412
CN  - TD412
PB  - The Gulf publishing company,
PP  - Houston, Tex.,
PY  - c1925.
ID  - 18964
KW  - Wells.
KW  - Boring.
TI  - Deep well drilling;the principles and practices of deep well drilling and a hand book of useful information for the well driller,
ER  -