APA-čujuhus (7. p.)
Bertolini, D. M. (1989). Back to the heart of youth work. Victor books.
Chicago-čujuhus (17. p.)
Bertolini, Dewey M. Back to the Heart of Youth Work. Usa: Victor books, 1989.
MLA-čujuhus (9. p.)
Bertolini, Dewey M. Back to the Heart of Youth Work. Victor books, 1989.
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