- https://dfat.gov.au/about-us/publications/historical-documents/volume-26/Pages/047-submission-no-349-barnes-to-cabinet -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-26/Pages/104-submission-jockel-to-hasluck -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-26/Pages/130-submission-no-320-barnes-to-cabinet -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-26/Pages/268-submission-no-577-barnes-to-cabinet -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-26/Pages/280-letter-warwick-smith-to-bland -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-27/Pages/117-speech-barnard-to-the-first-tuesday-group -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-22/Pages/283-memorandum-from-dunn-to-waller -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-26/Pages/210-submission-no-234-barnes-to-cabinet -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-27/Pages/085-note-by-osborn -
- https://dfat.gov.au/about-us/publications/historical-documents/volume-26/Pages/082-notes-of-discussions-between-warwick-smith-gutman-mccasker-and-mansfield -