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.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.