APA aipamena

BENTLEY TREVOR J. (1980). PRACTICAL COST REDUCTION. MCGRAW-HILL.

Chicago Style aipamena

BENTLEY TREVOR J. PRACTICAL COST REDUCTION. NEW DELHI: MCGRAW-HILL, 1980.

MLA aipamena

BENTLEY TREVOR J. PRACTICAL COST REDUCTION. MCGRAW-HILL, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.