Berger, S. (1977). Estimating and project management for small construction firms. National Book Store.
Chicago-referens (17:e uppl.)Berger, Seymour. Estimating and Project Management for Small Construction Firms. Manila: National Book Store, 1977.
MLA-referens (9:e uppl.)Berger, Seymour. Estimating and Project Management for Small Construction Firms. National Book Store, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.