How to find SC sutta ID from PTS reference

How can we find the “modern” number for a sutta if we have only the older style one: here is an example:
PTS: M ii 125 (Pali Text Society I think) and the MAJJHIMA NIKAYA; I happen to know this one as MN 90. BUT how, if I did not know, would I be able to figure this out? Is there an index somewhere (and there are a number of NIKAYAS!). I got this example at:
http://www.accesstoinsight.org/tipitaka/mn/mn.090.than.html

Thanks and metta,

Fred

1 Like

It’s in the volume/page number column. You take the cite (M ii 125) and read down the list until you find it.

1 Like