I'd recommend looking into qualify_to_ref from Symbol e.g

use strict;

use Symbol 'qualify_to_ref';
use Data::Dumper;

my $tbl = qualify_to_ref('Data::Dumper::');

print Dumper *$tbl{HASH};

__output__

$VAR1 = {
          'ISA' => *Data::Dumper::ISA,
          'Useperl' => *Data::Dumper::Useperl,
          'Sortkeys' => *Data::Dumper::Sortkeys,
          'EXPORT_FAIL' => *Data::Dumper::EXPORT_FAIL,
          'new' => *Data::Dumper::new,
           ...
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This neatly side steps the necessity of turning off strict 'refs' and jumping through various hoops to deal with nested package names.