Παραπομπή σε μορφή APA (7η εκδ.)

Ashworth, A. (1983). Building economics and cost control: Worked solutions. Butterworths.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ashworth, A. Building Economics and Cost Control: Worked Solutions. London: Butterworths, 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ashworth, A. Building Economics and Cost Control: Worked Solutions. Butterworths, 1983.