APA način citiranja (7. izdanje)

(1990). Natural gas: Its role and potential in economic development. Westview pr..

Čikaški stil citiranja (17. izdanje)

Natural Gas: Its Role and Potential in Economic Development. Boulder: Westview pr., 1990.

MLA način citiranja (9. izdanje)

Natural Gas: Its Role and Potential in Economic Development. Westview pr., 1990.