Principles of Linguistic Change, Internal Factors
William Labov
Smarandache Loops
W. B. Vasantha Kandasamy
The Cambridge Companion to Piaget
Ulrich Müller & Jeremy I. M. Carpendale & Leslie Smith
using Corpora to Explore Linguistic Variation
Douglas Biber & Susan M. Fitzmaurice & Randi Reppen
The Overcoming of History in War and Peace
Jeff Love
Philosophy and the Social Problem
Will Durant
How We Think
John Dewey