Searles, William E.2009-03-232009-03-2319791979Source: Dissertation Abstracts International, Volume: 62-13, Section: A.http://hdl.handle.net/10393/8146http://dx.doi.org/10.20381/ruor-15672Biology, General.An investigation into the types of junior high school science curricula produced through the utilization of Macdonald's three curriculum development models.Thesis