CK-12 Geometry
Ck-12 Foundation
Target Centred Virtue Ethics
Christine Swanton
A Theory of Human Motivation
Abraham Harold Maslow
From Frege to Wittgenstein: Perspectives on Early Analytic Philosophy
Erich H. Reck
Corpus-Based Approaches to Sentence Structures
Toshihiro Takagaki
Yearbook of Morphology 1990
by Geert Booij & Jaap van Marle