SPIVEY, J.M. <br/><br/>
The Z notation : a reference manual 

 -  New York : Prentice - Hall  1989 
 - 155 p. 
<br/><br/><label>ISBN: </label>013983768X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Z language : Programming Languages
<br/><br/><label>Dewey Class. No.: </label>005.133  / S63