APA (7th ed.) Citation

Smithsonian Institution. Office of the Secretary, Abbot, C. G., Langley, S. P., Wright, O., & Wright, W. (1928). Relations between Smithsonian Institution and Wright brothers. [publisher not identified].

Chicago Style (17th ed.) Citation

Smithsonian Institution. Office of the Secretary, C. G. Abbot, S. P. Langley, Orville Wright, and Wilbur Wright. Relations Between Smithsonian Institution and Wright Brothers. Washington, D.C.: [publisher not identified], 1928.

MLA (9th ed.) Citation

Smithsonian Institution. Office of the Secretary, et al. Relations Between Smithsonian Institution and Wright Brothers. [publisher not identified], 1928.