How to cite from a book with more authors? Some books start each chapter with a short inspirational quote from some famous person e.g.


  Chapter 1.
  
  "I think, therefore I am"
  
  -René Descartes


I would like to do the same and I found the perfect quote, but the book it is from has three authors. What should I write on the bottom of the quote?
Remember the guiding principle of maximum ease in following a reference. If you don't know which author, cite primarily to the book.


  From "Book title", by x,y, and z


In fact, even if there is only one author, it is good to cite the book.