Edition descriptions are usually numbers (2d ed., 4th ed.), and they are essential to pointing your readers to the text of the source work you are using. Different editions often number pages differently, and if you do not include the edition description, it is quite possible that readers will not be able to relocate the material you are citing.

When the edition is a numbered edition, include the number of the edition in the Edition field.

Examples

      2d edition
      3d edition
      Revised edition
      2d revised edition

---

2d edition

Note that for the first edition of any published book, the edition description should not be included in the citation. When the edition is a numbered edition, include the number of the edition in the Edition field.

---

3rd edition

Note that for the first edition of any published book, the edition description should not be included in the citation. When the edition is a numbered edition, include the number of the edition in the Edition field.

---

Revised edition

Note that for the first edition of any published book, the edition description should not be included in the citation. For revised editions, enter "revised edition" in the Edition field. Edition field.

---

2d revised edition

Note that for the first edition of any published book, the edition description should not be included in the citation. For all editions with descriptions spelled out (i.e., "Students Cambridge Edition") enter the description as it appears on the title page in the Edition field. Note that this description will not be altered with the citation is formatted. Edition field.