A guide to the safe use of lasers in surveying and construction / 
[by members of a working party chaired by] B. J. Gorham. 
 - London :  Royal Institution of Chartered Surveyors,  [1980] 
 - 19.1 p. [63 p.] :  ill. 
<br/><br/><label>LCCN: </label>91013055     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lasers in surveying.<br/>Engineering instruments.<br/>Construction equipment.<br/>Surveying - instruments.