Rujukan Hachette Book Group

  1. ↑ "Company History". Hachette Company. Dicapai 6 June 2012. 
  2. ↑ "FAQs." Hachette Book Group. Retrieved on April 17, 2011. "Hachette Book GroupMarketing Department 237 Park Avenue New York, NY 10017"
  3. ↑ "Who Are "The Big Six"?". Fiction Matters. 5 March 2010. Dicapai 6 June 2012. 
  4. ↑ "About Us". Hachette Company. Dicapai 18 September 2017.