Merriam-Webster's Dictionary and Thesaurus
Merriam-Webster
Philosophy of mind
Wikipedia
Your Life Is Worth Living: The Christian Philosophy of Life
Fulton John Sheen & Esther B. Davidowitz & Jon Hallingstad
Africans and Native Americans
Jack D. Forbes
Statistics and Data Analysis in Geology
John C. Davis
Meetings With Remarkable Men
Georges Ivanovich Gurdjieff
All and Everything (2)