Berger, S. (1977). Estimating and project management for small construction firms. National Book Store.
Lua i Stíl Chicago (17ú heag.)Berger, Seymour. Estimating and Project Management for Small Construction Firms. Manila: National Book Store, 1977.
Lua MLA (9ú heag.)Berger, Seymour. Estimating and Project Management for Small Construction Firms. National Book Store, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.