APA-referens (7:e uppl.)

-. (1990). The land resources of indonesia: A anational overview. Foreign Office.

Chicago-referens (17:e uppl.)

-. The Land Resources of Indonesia: A Anational Overview. London: Foreign Office, 1990.

MLA-referens (9:e uppl.)

-. The Land Resources of Indonesia: A Anational Overview. Foreign Office, 1990.