E-learning systems, environments and approaches :  theory and implementation / 
spine title :  E-learning systems, environments and approaches. 
editors, Pedro Isaias [and three others]. 
 - xxiii, 329 pages :  illustrations :  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9783319058245  RM443.70 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer-assisted instruction.<br/>Educational technology.