Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (2003). Concrete building and concret products. Cement and Concrete Association.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. Concrete Building and Concret Products. London: Cement and Concrete Association, 2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. Concrete Building and Concret Products. Cement and Concrete Association, 2003.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.