Sawtell, D. (1972). Concrete block masonry in architecture. London: Cement and Concrete Association.
Παραπομπή Chicago StyleSawtell, David. Concrete Block Masonry in Architecture. London: Cement and Concrete Association, 1972.
Παραπομπή MLASawtell, David. Concrete Block Masonry in Architecture. London: Cement and Concrete Association, 1972.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.