TY  - BOOK
AU  - Speight,James G.
TI  - Foemulas and calculations for drilling operations
SN  - 9781119083627
AV  - SJMC TN281.S26 
PY  - 2018///
CY  - Beverly, MA
PB  - Scrivener Publishing Ltd
KW  - Formulas
KW  - Calculations
N1  - Include bibliographical references and index
ER  -