- Bahá'í Classification Schemes, by William P. Collins (2001). — Explanation of the expanded filing scheme for Baha'i topics used at the Baha'i World Centre Library,...
- Library and Archival Resources at the Bahá'í World Centre, by William P. Collins (1985:12). — Overview of the nature of the Baha'i World Centre; historical resources at the BWC; Centre for the S...
- "Phoenix Schedule" for the Dewey '200s', Suggested in particular for Bahá'í Libraries, A, by Paul Gerard (2000). — On the structure and limitations of the Dewey Decimal Scheme, with a detailed expanded subset for Ba...
- Texts, Sacred, Numbers and Classifications of, by Universal House of Justice (2002/2010/2013). — Three letters, from 2002, 2010, and 2013, about numbers of Sacred Texts catalogued by the Baha'i Wor...
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