Nelson , Donna Beth <br/><br/>
Portfolio assessment as a tool for training composition instruction :  a consideration of the model implemented by the general studies writing program at Bowling Green State University  [microform] / 
Donna Beth Nelson 
 - Ann Arbor, Mich. :  University Microfilms International,  1993 
 - 3 microfisches ;  11x 15 cm. 
<br/><br/>Thesis (Ph.D) - Bowling Green State University , 1993