http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bulletin of the Southwestern Association of Petroleum Geologists
Southwestern Association of Petroleum Geologists
Indexes: Vol. 1 (1917) indexed with v. 2-6 (1988-1922) of Bulletin of the American Association of Petroleum Geologists (issued as in v. 7, no. 6, pt. 2) with v. 7; v. 1 (1917) issued with v. 2-10 (1918-1926) of the Bulletin of the American Association of Petroleum Geologists, in 1 v.; v. 1 (1917) indexed with v. 2-20 (1918-1936) of the Bulletin of the American Association of Petroleum Geologists, in 1 v.
Bulletin of the American Association of Petroleum Geologists