Nicholson, M. (1956). A Manual of copyright practice for writers, publishers, and agents (2nd ed.). Oxford Univ. Press.
Chicago-viite (17. p.)Nicholson, Margaret. A Manual of Copyright Practice for Writers, Publishers, and Agents. 2nd ed. New York: Oxford Univ. Press, 1956.
MLA-viite (9. p.)Nicholson, Margaret. A Manual of Copyright Practice for Writers, Publishers, and Agents. 2nd ed. Oxford Univ. Press, 1956.
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