Use of the gravity pendulum as a timepiece,
by William Bowie, chief, Division of Geodesy, United States Coast and Geodetic Survey ...

APA Citation

U.S. Coast and Geodetic Survey., Bowie, W. (1926). Use of the gravity pendulum as a timepiece. [Washington: Govt. Print. Off..

MLA Citation

U.S. Coast and Geodetic Survey, and William Bowie. Use of the Gravity Pendulum As a Timepiece. [Washington: Govt. Print. Off., 1926.

Warning: These citations may not always be complete (especially for serials).