A manual of the protracting trigonometer : with its application to rectilinear draughting and plotting, trigonometry, and surveying
- publisher: New York : Sheldon
- creator: Lyman, Josiah
- Keyword: Protractors. Surveys Plotting.
- years: 1862.
- pages: xii, 77 p. :
- class: TA611
- notes: "Illustrated by examples and engravings."
- download: pdf file