Nicholls, Alfred Edward <br/><br/>
Nicholls's concise guide to navigation / revised and rewritten by Edward J. Coolen. 

 - 10th ed. 
 -  Glasgow : Brown, Son & Ferguson  1987 
<br/><br/><label>ISBN: </label>9780851745393 
<br/><br/><label>LC Class. No.: </label>VK 145 .N53 1987 
<br/><br/><label>National Library of Medicine Call No.: </label>VK 145 .N53 1987