Cita APA (7a ed.)
Bullard, F. J., & Stockton, J. R. Mexico's Natural Gas: The Beginning of an Industry. University of Texas.
Cita estilo Chicago (17a ed.)
Bullard, Fredda Jean, y John R. Stockton. Mexico's Natural Gas: The Beginning of an Industry. Austin, EUA: University of Texas.
Cita MLA (9a ed.)
Bullard, Fredda Jean, y John R. Stockton. Mexico's Natural Gas: The Beginning of an Industry. University of Texas.
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