APA Style
Oil & gas journal databook : 1987 edition. (1987).
Oklahoma:
PennWell Publishing Company.
Chicago Style
Oil & gas journal databook : 1987 edition.
.
Oklahoma:
PennWell Publishing Company,
1987.
Text.
MLA Style
Oil & gas journal databook : 1987 edition.
.
Oklahoma:
PennWell Publishing Company,
1987.
Text.
Turabian Style
Oil & gas journal databook : 1987 edition.
Oklahoma:
PennWell Publishing Company,
1987.
Print.