APA (7th ed.) Citation

Harris, B. J. (1997). Vegetation patterns of Pine Canyon, Big Bend National Park, Texas, in relation to elevation and slope aspect. [publisher not identified].

Chicago Style (17th ed.) Citation

Harris, Bryan Joseph. Vegetation Patterns of Pine Canyon, Big Bend National Park, Texas, in Relation to Elevation and Slope Aspect. [Place of publication not identified]: [publisher not identified], 1997.

MLA (9th ed.) Citation

Harris, Bryan Joseph. Vegetation Patterns of Pine Canyon, Big Bend National Park, Texas, in Relation to Elevation and Slope Aspect. [publisher not identified], 1997.