National Buildings Organisation (India). (1968). Fly ash and its application as a building material. National Buildings Organisation & UN Regional Housing Centre, ECAFE.
Citace podle Chicago (17th ed.)National Buildings Organisation (India). Fly Ash and Its Application as a Building Material. New Delhi: National Buildings Organisation & UN Regional Housing Centre, ECAFE, 1968.
Citace podle MLA (8th ed.)National Buildings Organisation (India). Fly Ash and Its Application as a Building Material. National Buildings Organisation & UN Regional Housing Centre, ECAFE, 1968.
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