Original: Critical Problems in the History of Science pp. 321 - 56, Chapter 8, "Energy and Thermo-dynamics" External links MISN-0-158 The First Law of Thermodynamics (PDF file) by Jerzy Borysowicz for Project PHYSNET.
Simplified: Classic accounts, Chapter 8, "Energy and Thermo-dynamics" Other websites MISN-0-158 The First Law of Thermodynamics (PDF file) by Jerzy Borysowicz for Project PHYSNET.