APA (7th ed.) Citation

(1968). Map of Donna, Texas: "heart of the valley". [publisher not identified].

Chicago Style (17th ed.) Citation

Map of Donna, Texas: "Heart of the Valley". [Place of publication not identified]: [publisher not identified], 1968.

MLA (9th ed.) Citation

Map of Donna, Texas: "Heart of the Valley". [publisher not identified], 1968.