Gaya APA
Hoflinger, E. (1974).
XX Congress, Melbourne Australia March 5-12 1994: Commission 3= Land information systems .
Melbourne:
International of Surveyor Federation.
Gaya MLA
Hoflinger, Ernst.
"XX Congress, Melbourne Australia March 5-12 1994: Commission 3= Land information systems".
Melbourne:
International of Surveyor Federation,
1974.
Text.