(1974). Lightweight aggregate concrete: Technology and world applications. [s.l.]: [s.n.].
Παραπομπή Chicago StyleLightweight Aggregate Concrete: Technology and World Applications. [s.l.]: [s.n.], 1974.
Παραπομπή MLALightweight Aggregate Concrete: Technology and World Applications. [s.l.]: [s.n.], 1974.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.