The Oxford English Dictionary
J. A. Simpson & E. S. C. Weiner
A Welsh Grammar, Historical and Comparative: Phonology and Accidence
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Glory Road
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The Renaissance Philosophy of Man
Ernst Cassirer & Paul Oskar Kristeller & John Herman Randall Jr.
RxSwift: Reactive Programming with Swift
Florent Pillet
Metaphors We Live By
George Lakoff & Mark Johnson