Cacti of Arizona Field Guide (Cacti Identification Guides) (English Edition) - Bowers, Nora

A Practical Guide to Age-Period-Cohort Analysis: The Identification Problem and Beyond (English Edition) - Fu, Wenjiang

Mammals of Texas Field Guide (Mammal Identification Guides) (English Edition) - Tekiela, Stan

Escape the Wolf: A SEAL Operative’s Guide to Situational Awareness, Threat Identification, and Getting Off The X (English Edition) - Emerson, Clint

Age, Period and Cohort Effects: Statistical Analysis and the Identification Problem (English Edition) - Bell, Andrew