Algebra and Trigonometry
Jay P. Abramson & Valeree Falduto & Rachael Gross (Mathematics teacher) & David Lippman & Rick Norwood & Melonie Rasmussen & Nicholas Belloit & Jean-Marie Magnier & Harold Whipple & Christina Fernandez
Calculus
Edwin Herman & Gilbert Strang
20th Century Physics
Mike Corwin
Mathematics - Free of Worries at the University II
Christian Posthoff; Brand Steinbach
On the origin of species by means of natural selection: or, ...
C Darwin