APA (7th ed.) Citation

National Lumber Manufacturers Association. (1956). Wood structural design data (3d. ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

National Lumber Manufacturers Association. Wood Structural Design Data. 3d. ed. Washington: [publisher not identified], 1956.

MLA (9th ed.) Citation

National Lumber Manufacturers Association. Wood Structural Design Data. 3d. ed. [publisher not identified], 1956.