APA (7th ed.) Citation

North Texas Geological Society & Wichita Falls Geological Society. Field trip .. [publisher not identified].

Chicago Style (17th ed.) Citation

North Texas Geological Society and Wichita Falls Geological Society. Field Trip .. [Vernon?] [Wichita Falls, etc.]: [publisher not identified].

MLA (9th ed.) Citation

North Texas Geological Society and Wichita Falls Geological Society. Field Trip .. [publisher not identified].

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