%0 Generic %A Drewry. %C [S.l.] : %D 1911. %E Drewry, Charles Stewart. %I [s.n.], %T Law of trade marks %U http://SK8ES4MC2L.search.serialssolutions.com/?sid=sersol&SS_jc=TC_017203056&title=Law%20of%20trade%20marks %7 5th ed.