The publication date can be taken from anywhere on a webpage. It can be found at the top of the page, the bottom, or on the sides, so look carefully before concluding that there is no date.
Look for a "last updated" date; failing that, provide the most recent copyright date. Provide the most specific date possible, for example, a year, month, and day; year and month; or year only, depending on the information available. When you use a copyright date, put the year only without a leading "c".
If no date can be found, put n.d. in place of the date.
