TY  - BOOK
AU  - Darlington, Arnold
TI  - Ecology of walls
SN  - 0435602233
AV  - QH541.D3418 1981 
PB  - Heinemann Educational Books
KW  - Ecology
KW  - Walls
KW  - QH
N1  - Includes bibliographical references (p. 132) and index
ER  -