Summerskill, Michael Brynmôr,  1927- <br/><br/>
Laytime / 
by Michael Brynmôr Summerskill. 
 - London :  Sweet & Maxwell,  1966. 
 - xxvii, 282p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lay days--Great Britain.<br/>Demurrage.