As I’m reading this, I want to be sure I understand…In this volume, you ONLY have ONE page of R1 – not the entire three pages (I’ll assume it is some type of appendix or end matter and you only need the one page in THIS volume). If I am reading this correctly, then in this volume, you only have R1 – one page of the reference material.  The title page should reflect that.

If I’ve misread your question and you DO have all three pages of R1 in a volume, the title page would read R1-bR1.

Cindi