Não informado. (1978). Cost Engineering. American Association of Cost Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Cost Engineering. Morgantown, Wa. Va: American Association of Cost Engineers, 1978.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Cost Engineering. American Association of Cost Engineers, 1978.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.