Cita APA (7a ed.)

National Lumber Manufacturers Association (Washington). (1939). Wood structural design data (2.ed.). National lumber association.

Cita Chicago Style (17a ed.)

National Lumber Manufacturers Association (Washington). Wood Structural Design Data. 2.ed. Washington: National lumber association, 1939.

Cita MLA (9a ed.)

National Lumber Manufacturers Association (Washington). Wood Structural Design Data. 2.ed. National lumber association, 1939.