Box 112No page numbers appear on the pages of the contribution

• If the contribution to a book in PDF (Portable Document Format) has no page numbers:

  • Count the total numbers of pages of the text
  • Follow the count total by "p."
  • Place the number and "p." in square brackets, such as [12 p.]
  • End page information with a period
    Example: [20 p.].
• If the contribution to a book is in HTML, XML, or other unpaginated format has no page numbers:

  • Count the number of screens, paragraphs, lines, or bytes, whichever is most practical, or print out the part and count the number of pages
  • Because screen size and type fonts vary, precede the total with the word "about" for all except the number of paragraphs and bytes
  • Place the count total and the measure used in square brackets
  • End with a period placed outside the closing bracket
    Examples:

    • [about 6 screens].
    • [about 23 p.].
    • [10 paragraphs].
• As an option, use the chapter number of a contribution in place of the number of pages or screens

  • Chorba T, Tao G, Irwin KL. Sexually transmitted diseases. In: Litwin MS, Saigal CS, editors. Urologic diseases in America [Internet]. Bethesda (MD): National Institute of Diabetes and Digestive and Kidney Diseases (US); 2004 [cited 2006 Nov 20]. Chapter 9. Available from: http://kidney.niddk.nih.gov/statistics/uda/UTI_STD.pdf#page=91