An introduction to Christian lectionaries
The church year : the Christian's history
The lectionary as hermeneutic
Preaching the lectionary today
Preaching the Incarnation cycle
Preaching the Easter (Paschal) cycle
Preaching in ordinary time.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Preaching the Revised common lectionary : a guide by Gail R. O'Day. ISBN 9780687646241. Published by Abingdon in 2007. Publication and catalogue information, links to buy online and reader comments.
