Introduction to cruise line travel safety, security and crowd control 
Laxa, Nathaniel. 
 -  Mindshapers Co., Inc.,  2021 
 - x, 134 pages 
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<br/><br/><label>ISBN: </label>978-9-71990582-0 
<br/><br/><label>Dewey Class. No.: </label>M 387.542 L4259 2021