APA (7th ed.) Citation

Ritter, M. A. (1993). Current timber bridge research and development in the United States. [U.S. Forest Products Laboratory].

Chicago Style (17th ed.) Citation

Ritter, Michael A. Current Timber Bridge Research and Development in the United States. [Madison, Wis.]: [U.S. Forest Products Laboratory], 1993.

MLA (9th ed.) Citation

Ritter, Michael A. Current Timber Bridge Research and Development in the United States. [U.S. Forest Products Laboratory], 1993.