The American atlas  : U.S. longitudes and latitudes : time changes and time zones 
/ comp. and programmed by Thomas G. Shanks 
. - Expanded 5th ed. 
. - San Diego  : ACS publ., cop. 1990
. - 617 p.  : ill.  ; 28 cm. 
<br/><br/><label>ISBN: </label>9780935127133 0935127135 
<br/><br/><label>Source: </label> Don du CCA 
<br/><br/><label>Universal Decimal Class. No.: </label>973.