APA-viite (7. p.)
(1974). Bibliographic Series. Documentary Dep. of the European Centre of Leisure and Education.
Chicago-viite (17. p.)
Bibliographic Series. Prague: Documentary Dep. of the European Centre of Leisure and Education, 1974.
MLA-viite (9. p.)
Bibliographic Series. Documentary Dep. of the European Centre of Leisure and Education, 1974.
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