Morton, Hunert. <br/><br/>
Science for coalmining students / 
H. Morton and D. S. Morton. 
 - London :  Technical Press,  1959. 
 - 250 p. :  illus. ;  22 cm. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science.<br/>Mine gases.