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Proceedings of the Estonian Academy of Sciences. Humanities and Social Sciences
1996199519941993199219911990198919881987198619851984198319821981198019791978197719761975197419731972197119701969Vol. 18, Issue 4Vol. 18, Issue 3Vol. 18, Issue 2Vol. 18, Issue 119681967
1996199519941993199219911990198919881987198619851984198319821981198019791978197719761975197419731972197119701969Vol. 18, Issue 4Vol. 18, Issue 3Vol. 18, Issue 2Vol. 18, Issue 119681967
Open Access Journal
Research article
KOLMEVÄLJASÜSTEEMI HÄLVETEST; pp. 70–80
PDF | https://doi.org/10.3176/hum.soc.sci.1969.1.06

Author
Enn Tarvel
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