APA (7th ed.) Citation

Flawn, P. T. (1951). Pegmatites of the Van Horn Mountains, Texas. [publisher not identified].

Chicago Style (17th ed.) Citation

Flawn, Peter Tyrell. Pegmatites of the Van Horn Mountains, Texas. [Austin]: [publisher not identified], 1951.

MLA (9th ed.) Citation

Flawn, Peter Tyrell. Pegmatites of the Van Horn Mountains, Texas. [publisher not identified], 1951.