31 Mackenzie, Craig, Professor Peter Singer speaking at the National Press Club Canberra, 11 February 2009 [picture] / Craig Mackenzie Canberra : 2009 National Library of Australia 1 photograph : Title devised by cataloguer based on information from acquisitions documentation. Part of the collection: Humanitarian author Professor Peter Singer at the National Press Club, Canberra, 11 February 2009. Acquired in digital format; access copy available online.