System Identification by Lennart Ljung

MASTER TREE FINDER: Pocket MANUAL FOR THE IDENTIFICATION OF TREES BY LEAVES 1991

Colour Identification Guide to Moths of the British Isles Hardcover. Skinner

GIA Gem Identification Assignment Course Books 1992 Complete

American Kennel Club Breed Identification Guide AKC 2014

GIA Gem identification laboratory manual 1984 3rd edition - Very Nice

A Child is Born by Nilsson, Lennart

Plant Identification Terminology by James Harris