557.3  / Un3g <br/>
       GEOLOGICAL SURVEY RESEARCH 1967 
 / GEOLOGICAL SURVEY PROFESSIONAL PAPER 575-A 
 .- Washington: United States Government Printing Office,  1967 
 .- 377. 
<br/>Ch. A. 
<br><U>Copy Details:</u><br> Acc. No.: <b>A46818</b>, Full Call No.: 557.3 Un3g,   Item type:  Books , Location: COMPACT STORAGE (BASEMENT), <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>