How to abbreviate Northern Texas Northern Louisiana?

The ways to abbreviate Northern Texas Northern Louisiana.

Showing "Northern Texas Northern Louisiana" (corrected from "northern course") | add "northern course" definition

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NTNL:
Northern Texas Northern Louisiana
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APASmart Define. (2017). Northern Texas Northern Louisiana. Retrieved September 20, 2026, from http://smartdefine.org/northern_texas_northern_louisiana/abbreviations/a
ChicagoSmart Define. 2017. "Northern Texas Northern Louisiana" http://smartdefine.org/northern_texas_northern_louisiana/abbreviations/a (accessed September 20, 2026).
HarvardSmart Define 2017, Northern Texas Northern Louisiana, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/northern_texas_northern_louisiana/abbreviations/a>.
MLASmart Define. "Northern Texas Northern Louisiana" 16 June 2017. Web. 20 September 2026. <http://smartdefine.org/northern_texas_northern_louisiana/abbreviations/a>