The American Association of Petroleum Geologists bulletin.

v.51 1967 Jan-Apr; v.51 1967 May-Aug; v.51 1967 Sep-Dec; v.51:1-3 (Jan-Mar 1967); v.51:3:2 (1967); v.51:4-6 (Apr-June 1967); v.51:7-9 (July-Sept 1967); v.51:10-12 (Oct-Dec 1967); v.51 no.1-3; v.51 no.4-6; v.51 no.7-12; v.52 1968 Jan-Jun; v.52:11-12 (Nov-Dec 1968); v.52:1-3 (Jan-Mar 1968); v.52:4-6 (Apr-June 1968); v.52:7-10 (July-Oct 1968); v.52 no.1-3; v.52 no.4-6; v.52 no.7-9; v.52 no.10-12; v.53 1969 Jan-Jun; v.53:1-3 (Jan-Mar 1969); v.53:4-6 (Apr-June 1969); v.53:7-9 (July-Sept 1969); v.53:10-12 (Oct-Dec 1969); v.53 no.1-3; v.53 no.4-6; v.53 no.7-9; v.53 no.10-12; v.54 1970 Jan-Jun; v.54 1970 Jul-Oct; v.54 1970 Nov-Dec; v.54:1-5 (Jan-May 1970); v.54:6-9 (June-Sept 1970); v.54:10-12 (Oct-Dec 1970); v.54 no.1-3; v.54 no.4-6; v.54 no.7-9; v.54 no.10-12; v.55 1971 Jan-May; v.55 1971 Jun-Sep; v.55 1971 Oct-Dec; v.55:1-4 (Jan-Apr 1971); v.55 no.1-5; v.55 no.6-9; v.55 no.10-12; v.56 1972 Jan-Jun; v.56 1972 Jul-Oct; v.56 1972 Nov-Dec; v.56 no.1-6; v.56 no.7-10; v.56 no.11-12; v.57 1973 Jan-Jun; v.57 no.1-6; v.57 no.7-12; v.53:10 suppl. (Oct 1969)