APA (7th ed.) Citation

Long, W. E. (1960). The Longhorn crossing. [publisher not identified].

Chicago Style (17th ed.) Citation

Long, Walter E. The Longhorn Crossing. [Austin? Tex.]: [publisher not identified], 1960.

MLA (9th ed.) Citation

Long, Walter E. The Longhorn Crossing. [publisher not identified], 1960.