APA (7th ed.) Citation

Texas Energy Extension Service & Texas. Governor's Energy Management Center. (1989). Shading. Governor's Energy Management Center.

Chicago Style (17th ed.) Citation

Texas Energy Extension Service and Texas. Governor's Energy Management Center. Shading. Austin, Texas: Governor's Energy Management Center, 1989.

MLA (9th ed.) Citation

Texas Energy Extension Service and Texas. Governor's Energy Management Center. Shading. Governor's Energy Management Center, 1989.