Kilford.W.K. <br/><br/>
Elementary Air Survey.(1973). 

 - 3rd Ed. 
 -  Pitman  1973 
 - 363p.  22 cm. 
<br/><br/><br/>Text in English 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>CIVI
<br/><br/><label>Index Terms--Genre/Form: </label><br/>C-16
<br/><br/><label>Dewey Class. No.: </label>25B-182  / KIL