APA (7th ed.) Citation

Texas Natural Resources Information System. (1989). TNRIS newsletter. Texas Natural Resources Information System.

Chicago Style (17th ed.) Citation

Texas Natural Resources Information System. TNRIS Newsletter. Austin, Tex.: Texas Natural Resources Information System, 1989.

MLA (9th ed.) Citation

Texas Natural Resources Information System. TNRIS Newsletter. Texas Natural Resources Information System, 1989.

Warning: These citations may not always be 100% accurate.