Castor, Benz Carlo B.  <br/><br/>
Designing, creating and testing a foldable cardboard bicycle helmet got cyclists. 

 - Marikina City  March 2019 
 - vi, 74pages;   illustration;  28cm. 
<br/><br/> Includes: references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Cycling -- Safety measures.
<br/><br/><label>LC Class. No.: </label>TL 435  / C35 2019