Lewis, J. O., & Goulding, J. (1994). European directory of energy efficient building 1993: Componets, services, materials. London: James and James Ltd.
Παραπομπή Chicago StyleLewis, J. Owen, and John Goulding. European Directory of Energy Efficient Building 1993: Componets, Services, Materials. London: James and James Ltd, 1994.
Παραπομπή MLALewis, J. Owen, and John Goulding. European Directory of Energy Efficient Building 1993: Componets, Services, Materials. London: James and James Ltd, 1994.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.