TY  - BOOK
TI  -  The building material industry : :  its role in low-cost shelter pro gramms - sectoral studies branch, studies and research division
PY  - 1987///
CY  -  [s.l.] : 
PB  -  United Nations Publications, 
KW  -  Building materials industry
N1  -  Includes bibliographical references (p.34-36)
ER  -