APA-čujuhus (7. p.)
Helbo, A. (1987). Theory of performing arts. Benjamins.
Chicago-čujuhus (17. p.)
Helbo, André. Theory of Performing Arts. Amsterdam ; Philadelphia: Benjamins, 1987.
MLA-čujuhus (9. p.)
Helbo, André. Theory of Performing Arts. Benjamins, 1987.
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