Encyclopedia of the Human Brain
Vilayanur S. Ramachandran
We the Living
Ayn Rand & Leonard Peikoff
Concise Encyclopedia of Languages of the World
E. K. Brown & Sarah Ogilvie
The Sign of Four
Arthur Conan Doyle
Principles of Linguistic Change, Social Factors
William Labov
Yearbook of Morphology 1989
Geert Booij & Jaap van Marle