Mayfield, M. I. <br/><br/>
On Handling the Data  [electronic resource] / 
M. I. Mayfield 
 -  Project Gutenberg,  2007 
 - Project Gutenberg  23429 .
<br/><br/> Public domain in the USA. 
<br/><br/>Electronic text 
<br/><br/><label>Subjects--Index Terms: </label>Science fiction Epistolary fiction Short stories