Cita APA (7a ed.)

Hughes, R. (1978). Oil property valuation (2a. ed. corr.). Krieger.

Cita Chicago Style (17a ed.)

Hughes, Richard. Oil Property Valuation. 2a. ed. corr. Malabar: Krieger, 1978.

Cita MLA (8a ed.)

Hughes, Richard. Oil Property Valuation. 2a. ed. corr. Krieger, 1978.