Eckersley, C.E. <br/><br/>
A concise English grammar for foreign students   : Key (with notes and explanations) to the exercises 
/ C.E. Eckersley 
. - London  : Longmans, 1958
. - 42 p.  ; 18 cm. 
<br/><br/><label>Source: </label> Fonds EX-ENS 
<br/><br/><label>Universal Decimal Class. No.: </label>S 802.0