3G handy guide : masonry 
3G E-learning. 
 -  3G E-learning LLC.  2019 
 - x, 213 pages 
<br/><br/>
<br/><br/><label>ISBN: </label>978-1-984623-95-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Concrete construction -- formwork.
<br/><br/><label>Dewey Class. No.: </label>693.1 H23696 2019