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Chicago-viite (17. p.)Australasian Urban and Regional Information Systems Association. ACT Chapter. Seminar, Australasian Urban and Regional Information Systems Association, C. A. Parvey, ja Ken Granger. A National Geographic Information System--an Achievable Objective?: Proceedings :AURISA Australasian Urban and Regional Information Systems Association Inc., ACT Chapter Seminar , August 29th, 1989, Canberra. [Canberra]: AURISA, 1990.
MLA-viite (8. p.)Australasian Urban and Regional Information Systems Association. ACT Chapter. Seminar, et al. A National Geographic Information System--an Achievable Objective?: Proceedings :AURISA Australasian Urban and Regional Information Systems Association Inc., ACT Chapter Seminar , August 29th, 1989, Canberra. AURISA, 1990.