Author | Alonso, William |
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Title | Gravity models / by William Alonso |
Imprint | Cambridge, Massachusetts : Center for Population Studies, Harvard University, 1986 |
Edition | 1st ed |
Descript | 9 p. ; 28 cm |
LOCATION | CALL# | STATUS |
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Population Information Center | Ser.51/No.86-9 | LIB USE ONLY |