District Comparison by the Index of Urban Challenge
- ISBN 10 : PSU:000004893967
- Judul : District Comparison by the Index of Urban Challenge
- Pengarang : Boy Scouts of America,
- Kategori : Sports & Recreation
- Bahasa : en
- Tahun : 1970
- Halaman : 42
- Halaman : 42
- Google Book : http://books.google.co.id/books?id=Aw_uAAAAMAAJ&dq=inauthor:boy&hl=&source=gbs_api
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