The Monthly Sky Guide-Ian Ridpath, W. Tirion

The Monthly Sky Guide By Will Tirion, Ian Ridpath

The Monthly Sky Guide,Ian Ridpath, W. Tirion

The Monthly Sky Guide, Ridpath, Ian,Tirion, W., Very Good Book

Monthly Sky Guide by Wil Tirion and Ian Ridpath (1993, Trade Paperback)

The Monthly Sky Guide - Paperback, by Ridpath Ian; Tirion Wil - Acceptable

The Monthly Sky Guide Paperback Ian, Tirion, Wil Ridpath