Merriam-Webster's Collegiate Dictionary
Frederick C. Mish
The Oxford English Dictionary - BBC-CHA
J. A. Simpson & E. S. C. Weiner
Etymological Dictionary of Latin and the Other Italic Languages
Michiel de Vaan
The Psychology of Language: From Data to Theory
Trevor A. Harley
The Naked Communist: Exposing Communism and Restoring Freedom
W. Cleon Skousen & Paul B. Skousen
Yearbook of Morphology 1991
G. E. Booij & Jaap van Marle
Yearbook of Morphology 1992
Geert Booij & Jaap van Marle
Yearbook of Morphology 1993