APA (7th ed.) Citation

Litchfield, S. C. (1994). Overload permit rules applicable to H-type and HS-type bridges. [publisher not identified].

Chicago Style (17th ed.) Citation

Litchfield, Stephen Charles. Overload Permit Rules Applicable to H-type and HS-type Bridges. [Place of publication not identified]: [publisher not identified], 1994.

MLA (9th ed.) Citation

Litchfield, Stephen Charles. Overload Permit Rules Applicable to H-type and HS-type Bridges. [publisher not identified], 1994.