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by Levine, David I.; Shapell, Rochelle J.
by Plummer, Robert L.; Merkle, Benjamin L.
by Nelson, Debra L; Gooty, Janaki; Quick, James Campbell
by Willbanks, Stephanie J.
by Shackett, Pete
by Michael, Tamara
by Ward, Kerry; Oehlers, Adam
by George, Michael; Maxey, John; Rowlands, David; et al.
by NSTA Press (Author), Ted Willard (Editor)
by Woldoff, Ron