  1999 - A Unified Theory of Voting Directional and Proximity Spatial Models (Hardcover) → Paperback ISBN-13: 9780521662222 ISBN-10: 0521662222 Genres: Nonfiction, Substores ?  1999 - A Unified Theory of Voting Directional and Proximity Spatial Models (Paperback) → Hardcover ISBN-13: 9780521665490 ISBN-10: 0521665493 Genre: Nonfiction ? |
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