Ayris, Cyril,  1935- <br/><br/>
C.Y.O'Connor :  a brief  biography / 
Cyril Ayris. 
 - West Perth, W.A. :  Cyril Ayris Freelance,  2004. 
 - 56 p. , [6] p. of plates :  ill. (some col.), maps, ports. ;  17 x 21 cm. 
<br/><br/> Cover title. 
<br/><br/><label>ISBN: </label>0957885342 
<br/><br/><label>Subjects--Personal Names: </label><br/>O'Connor, C. Y. 1843-1902. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil engineers--Western Australia--Biography.