Cita APA (7a ed.)

Heald, K. C. (1947). Report of the committee on research on petroleum, society of economic geologists.

Cita Chicago Style (17a ed.)

Heald, K. C. Report of the Committee on Research on Petroleum, Society of Economic Geologists. 1947.

Cita MLA (8a ed.)

Heald, K. C. Report of the Committee on Research on Petroleum, Society of Economic Geologists. 1947.