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Books about Pettem:
Legend of a Landmark A History of the Hotel Boulderado by Silvia Pettem by Silvia Pettem (1986)
Cold Case Research Resources for Unidentified, Missing, and Cold Homicide Cases by Pettem, Silvia (2012) Hardcover... by Silvia Pettem (1111)
Boulder: Evolution of a City (Revised) [ BOULDER: EVOLUTION OF A CITY (REVISED) BY Pettem, Silvia ( Author ) Jun... by Silvia Pettem (Jun 1, 2006)