APA (7th ed.) Citation

Gladstone, J., & Humphreys, K. K. (1995). Mechanical estimating guidebook (6th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Gladstone, John, and Kenneth King Humphreys. Mechanical Estimating Guidebook. 6th ed. New York: McGraw-Hill, 1995.

MLA (9th ed.) Citation

Gladstone, John, and Kenneth King Humphreys. Mechanical Estimating Guidebook. 6th ed. McGraw-Hill, 1995.