GDG- Pipe Creek circular question

[cameron2 at optonline.net]

<< Hello All,
  The memory is playing games with me. Would someone please take pity on me and tell me by private e-mail the volume and Page of the O.R. for the Pipe Creek Circular. I'm in the library facing the entire set of books and trying to remember which one to grab.
  Thank you, thank you, thank you.
  JoAnn  >>
Vol. 27, Part III.  Don't recall the exact page, but it should be 460-something, IIRC.