Cita APA (7a ed.)

Ballem, J. (2008). The oil and gas lease in Canada (4th ed.). University of Toronto Press.

Cita Chicago Style (17a ed.)

Ballem, John. The Oil and Gas Lease in Canada. 4th ed. Toronto [Ont.]: University of Toronto Press, 2008.

Cita MLA (8a ed.)

Ballem, John. The Oil and Gas Lease in Canada. 4th ed. University of Toronto Press, 2008.