Cha, O. (2007). Sail as wing: Ouhi Cha. Ouhi Cha.
Chicago-Zitierstil (17. Ausg.)Cha, Ouhi. Sail as Wing: Ouhi Cha. Korea: Ouhi Cha, 2007.
MLA-Zitierstil (8. Ausg.)Cha, Ouhi. Sail as Wing: Ouhi Cha. Ouhi Cha, 2007.
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