The Ayn Rand Letter (October 1971 to January 1972)
Ayn Rand
Expression and Meaning: Studies in the Theory of Speech Acts
John Rogers Searle
Web Scraping com Python: Coletando dados na Web moderna
Ryan Mitchell
Radar Technology Encyclopedia
David Knox Barton & Sergeĭ Aleksandrovich Leonov
CK-12 Trigonometry - Second Edition
Ck-12 Foundation
Homes and Other Black Holes
Dave Barry