YOUR ARRAY 'This is the build hash':
$VAR1 = {
  'msg' => [],
  'input' => {
    'extension' => 'data',
    'page' => '1',
    'per_page' => 10,
    'api' => 'product',
    'apikey' => 'testing'
  },
  'status' => 'success',
  'meta' => {
    'utm_source' => 'powellsapi',
    'page' => '1',
    'last_page' => 1,
    'per_page' => 10,
    'page_results' => 1,
    'internal' => 1
  },
  'results' => {
    '9780061833052' => {
      'product_page' => 'http://www.powells.com/biblio/9780061833052?utm_source=powellsapi',
      'cover_images' => {
        '60' => 'http://content-2.powells.com/bookcovers/60/9780061833052',
        '120' => 'http://content-2.powells.com/bookcovers/120/9780061833052'
      },
      'related_isbns' => [
        '9780061833052',
        '9780385301435',
        '9780385307659',
        '9780440214151',
        '9780060082192',
        '9780062119827',
        '9780385332804'
      ],
      'author' => {
        'alpha' => 'Leonard, Elmore',
        'proper' => 'Elmore Leonard'
      },
      'title' => 'Rum Punch'
    }
  }
};