APA (7th ed.) Citation

S.A.S.G.S. (Organization) & Texas A & M Geological Society. (1981). Geology of the lower Tertiary of the Brazos River Valley: S.A.S.G.S. Spring 1981 field trip. Texas A & M Geological Society, Texas A & M University.

Chicago Style (17th ed.) Citation

S.A.S.G.S. (Organization) and Texas A & M Geological Society. Geology of the Lower Tertiary of the Brazos River Valley: S.A.S.G.S. Spring 1981 Field Trip. College Station, Tex.: Texas A & M Geological Society, Texas A & M University, 1981.

MLA (9th ed.) Citation

S.A.S.G.S. (Organization) and Texas A & M Geological Society. Geology of the Lower Tertiary of the Brazos River Valley: S.A.S.G.S. Spring 1981 Field Trip. Texas A & M Geological Society, Texas A & M University, 1981.