apt Cheat Sheet
Opensource.com
Designing and Conducting Mixed Methods Research
John W. Creswell & Vicki L. Plano Clark
Encyclopedia of Spectroscopy and Spectrometry
Unknown
Play, Dreams and Imitation in Childhood
Jean Piaget
Gnosis und Judentum: Alttestamentliche und jüdische Motive in ...
Jaan Lahe
The Last Hour of Life - Gurdjieff, George Ivanovitch
Georges Ivanovich Gurdjieff
Becoming Conscious with G. I. Gurdjieff
Solange Claustres
Balanced Man
Fritz Peters
Beelzebub's Tales
Endlessness' Names
Beelzebubs Tales (original english version)
Beelzebubs Tales 1950
Georges Ivanovich Gurdjieff & Dushka Howarth
Gurdjieff Chapters (Warrior´s Way)
Robert de Ropp
A Socialist Meets Mr. Gurdjieff
Rowland Kenney
Gurdjieff and Prince Ozay
Paul Beekman Taylor
Beelzebub's Tales to His Grandson - All Three Books
Beelzebubs Erzählungen für seinen Enkel: Buch 1
Beelzebubs Erzählungen für seinen Enkel: Buch 3
Beelzebubs Erzählungen für seinen Enkel: Buch 2
Gurdjieff
Gil Friedman
Spatial Reasoning in the Early Years: Principles, Assertions, ...
Brent Davis
Structuring Mind: The Nature of Attention and How It Shapes ...
Sebastian Watzl
Representations: Philosophical Essays on the Foundations of ...
Jerry A. Fodor
Cognitive Neuroscience of Attention
Michael I. Posner
Jean Piaget and Neuchâtel: The Learner and the Scholar
Anne Nelly Perret-Clermont & Jean-Marc Barrelet