TY  - BOOK
AU  - Werthmann, Christian
TI  - Green roof: : a case study 
SN  - 9781568986852
U1  - 635.9671 
PY  - 2007///
CY  - New York
PB  - Princeton Architectural Press
KW  - LA
KW  - Green roofs (Gardening)
N1  - "Michael Van Valkenburgh Associates' design for the headquarters of the American Society of Landscape Architects."
ER  -