v. 1. Abies to Picea
v. 2. Pilgerodendron to Xanthocyparis.
Royal Horticultural Society encyclopedia of conifers : a comprehensive guide to cultivars and species by Aris G. Auders. ISBN 9781907057151. Published by Kingsblue Pub. in 2012. Publication and catalogue information, links to buy online and reader comments.