APA (7th ed.) Citation

Gallagher, P. F. (1965). Project estimating by engineering methods. Hayden Book.

Chicago Style (17th ed.) Citation

Gallagher, Paul F. Project Estimating by Engineering Methods. New York: Hayden Book, 1965.

MLA (8th ed.) Citation

Gallagher, Paul F. Project Estimating by Engineering Methods. Hayden Book, 1965.