Curious Behavior – Yawning, Laughing, Hiccupping, and Beyond Autor Robert R. Provine 24 apr 2014 Paperback Preț: 206.50 lei 3-5 săpt.
Laughter: A Scientific Investigation Autor Robert R. Provine 30 noi 2001 Paperback Preț: 131.94 lei 3-5 săpt.