Schaeffer, R. F. (1970). Delights and Pitfalls of Subject Cataloging.
Cita Chicago Style (17a ed.)Schaeffer, Rudolf F. Delights and Pitfalls of Subject Cataloging. 1970.
Cita MLA (9a ed.)Schaeffer, Rudolf F. Delights and Pitfalls of Subject Cataloging. 1970.
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