Gaya APA

Gassie, L., Fischer, H. (2013). Developing Sustainable Geographic Information System (GIS) Services for Parliamentary Clients . Singapore: International Federation of Library Associations and Institutions.

Gaya MLA

Gassie, Lillian., Fischer, Hannah. "Developing Sustainable Geographic Information System (GIS) Services for Parliamentary Clients". Singapore: International Federation of Library Associations and Institutions, 2013. e-journal.