APA način citiranja (7. izdanje)

Bullard, F. J. (1968). Mexico's natural gas: The beginning of an industry. University of Texas.

Čikaški stil citiranja (17. izdanje)

Bullard, Fredda Jean. Mexico's Natural Gas: The Beginning of an Industry. Austin: University of Texas, 1968.

MLA način citiranja (8. izdanje)

Bullard, Fredda Jean. Mexico's Natural Gas: The Beginning of an Industry. University of Texas, 1968.