Canadian Journal of research 1950 v.28, sec.A : The National Research council of canada 
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<br/>Includes Bibliography 
<br><U>Copy Details:</u><br> Acc. No.: <b>10548</b>, Full Call No.: ,   Item type:  Written-off , Location: , <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>