Bilby steel tower for triangulation,
by Jasper S. Bilby.
APA Citation
Bilby, J. S. (Jasper Sherman). (1940). Bilby steel tower for triangulation. Washington: U.S. Govt. Print. Off..
MLA Citation
Bilby, Jasper S. (Jasper Sherman), 1864-. Bilby Steel Tower for Triangulation. Washington: U.S. Govt. Print. Off., 1940.
Warning: These citations may not always be complete (especially for serials).