APA (7th ed.) Citation

Geological Consulting Services & Kelly, G. F. (1978). Structural contour map - base Austin Chalk. Geological Consulting Services.

Chicago Style (17th ed.) Citation

Geological Consulting Services and Geo. F. Kelly. Structural Contour Map - Base Austin Chalk. Houston, Texas: Geological Consulting Services, 1978.

MLA (9th ed.) Citation

Geological Consulting Services and Geo. F. Kelly. Structural Contour Map - Base Austin Chalk. Geological Consulting Services, 1978.