Book introduction, foreword or preface

Written by author

If the introduction, foreword or preface is written by the primary author of the book, reference it using the same format as book.

Written by editor (when there is an author and an editor)

If the introduction, foreword or preface is written by the editor of the book:

Family name, INITIAL(S) (of editor). Year. Introduction (or Foreword or Preface). In: Family name, INITIAL(S) of book author. Title. Edition (if not first edition). Family name, INITIAL(S) of editor. ed(s). Place of publication: Publisher, page number(s).

Example:

Malcolm, N. 2012. Introduction. In: Hobbes, T. Leviathan. Malcolm, N. ed. Oxford: Oxford University Press, pp. 1-6.

Written by third party

If the introduction, foreword or preface is written by someone other than the primary author or editor:

Family name, INITIAL(S) (of introduction author). Year. Introduction (or Foreword or Preface). In: Family name, INITIAL(S) (of book author). Title. Edition (if not first edition). Place of publication: Publisher, page numbers.

Example:

Amis, K. 1958. Foreword. In: Ulanov, B. A handbook of jazz. London: Hutchinson, i-iv.

If the page numbers are in Roman numerals, do not include p. before them (see example above).