%0 Generic %C [S.l.] : %D 1920. %I [s.n.], %T Johnson's 1920 catalogue of strawberry plants %U http://SK8ES4MC2L.search.serialssolutions.com/?sid=sersol&SS_jc=TC_027958097&title=Johnson%27s%201920%20catalogue%20of%20strawberry%20plants