A manual of the principle instruments used in American engineering and surveying, manufactured by W. & L.E. Gurley.

APA Citation

W. & L.E. Gurley (Troy, N. (1908). A manual of the principle instruments used in American engineering and surveying, manufactured by W. & L.E. Gurley. 41st ed. Troy, N.Y.: Published by W. & L.E. Gurley.

MLA Citation

W. & L.E. Gurley (Troy, N.Y.). A Manual of the Principle Instruments Used In American Engineering And Surveying, Manufactured by W. & L.E. Gurley. 41st ed. Troy, N.Y.: Published by W. & L.E. Gurley, 1908.