TY  - BOOK
AU  - Congdon,R.J.ed
TI  - Introduction to appropriate technology: toward a simpler life-style 
SN  - 0878571884 :
AV  - T49.5 .I58
U1  - 338.91/172/4 
PY  - 1977///
CY  - Emmaus, Pa.
PB  - Rodale Press
KW  - Appropriate technology
N1  - Bibliography: p. 200-202.Includes index
ER  -