TY  - BOOK
AU  - Jackson, John Brinckerhoff, 1909-1996
TI  - The necessity for ruins, and other topics
SN  - 9780870232923
AV  - GF91.U6J32 1980 
PB  - University of Massachusetts  Press
KW  - Landscape assessment - United States
KW  - United States - Description and travel
KW  - GF
N1  - Includes bibliographical references (p. [127]-129)
ER  -