APA (7th ed.) Citation

Forest Glen TV Productions. (1990). A history of the Guadalupe Mountains and Carlsbad Caverns, 1840-1940.

Chicago Style (17th ed.) Citation

Forest Glen TV Productions. A History of the Guadalupe Mountains and Carlsbad Caverns, 1840-1940. 1990.

MLA (9th ed.) Citation

Forest Glen TV Productions. A History of the Guadalupe Mountains and Carlsbad Caverns, 1840-1940. 1990.

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