Yli-Jokipii, P. (1988). Centenary bibliography of papers published in the journals of the Geographical Society of Finland, by topic: 1888 - 1987.
Chicago-Zitierstil (17. Ausg.)Yli-Jokipii, Pentti. Centenary Bibliography of Papers Published in the Journals of the Geographical Society of Finland, by Topic: 1888 - 1987. Turku, 1988.
MLA-Zitierstil (9. Ausg.)Yli-Jokipii, Pentti. Centenary Bibliography of Papers Published in the Journals of the Geographical Society of Finland, by Topic: 1888 - 1987. 1988.
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