De Principiis
(engl.)
at New Advent
[www.newadvent.org/fathers/0412.htm]

Philosophiae naturalis principia mathematica
(lat. ed.: W. Thomson LL.D., Hugh Blackburn M.A.)
at Online Library of Liberty
[oll.libertyfund.org/Home3/Book.php?recordID=0741]

Philosophiae naturalis principia mathematica
(lat. ed.: Principiorum anno 1726)
at The Latin Library
[www.thelatinlibrary.com/newton.html]

Representations on the Subject of Money
(engl.)
at McMaster University
[socserv2.socsci.mcmaster.ca/~econ/ugcm/3ll3/newton/newton.htm]