APA (7th ed.) Citation

South Texas Geological Society & Hudson, L. J. (1985). Selected Cretaceous exposures of Southwest Texas: Culebra Arch, Knippa Basalt Quarry, Maverick Basin Margin : a field guide. South Texas Geological Society.

Chicago Style (17th ed.) Citation

South Texas Geological Society and L. Joy Hudson. Selected Cretaceous Exposures of Southwest Texas: Culebra Arch, Knippa Basalt Quarry, Maverick Basin Margin : A Field Guide. [Tex.]: South Texas Geological Society, 1985.

MLA (9th ed.) Citation

South Texas Geological Society and L. Joy Hudson. Selected Cretaceous Exposures of Southwest Texas: Culebra Arch, Knippa Basalt Quarry, Maverick Basin Margin : A Field Guide. South Texas Geological Society, 1985.