Betty Cornfeld (Cornfeld, Betty)

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  Quintessence
  by Owen Edwards, Betty Cornfeld, Dan Kozan, John Jay
  Softcover, Crown Publishing Group, ISBN 0517550903 (0-517-55090-3)
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  via
  Quintessence : The Quality of Having It
  by Betty Cornfeld, Owen Edwards
  Hardcover, Black Dog & Leventhal Publishers, Incorporated, ISBN 1579121500 (1-57912-150-0)