Breed, Charles B. and George L. Hosmer. The Principles and Practice of Surveying. Vol. 1: Elementary Surveying. Revised by Alexander J. Bone. 10th ed. New York: John Wiley & Sons, 1970.

Breed, Charles B. and George L. Hosmer. The Principles and Practice of Surveying. Vol. 1: Elementary Surveying. Revised by Alexander J. Bone. 10th ed. New York: John Wiley & Sons, 1970.