00286nam a2200097Ia 4500080001800000245007800018260002700096300001700123500002900140583001900169  a08.03.03 U588  aAppropriate industrial technology for construction and building materials  bU.N.aNew YorkUSc1980  axiii, 218 p.  aBibliography: p. 214-218  c3/7/00kM2LMGR