259694
He received an M.A. in modern history from the same college and a DPhil from Nuffield College , Oxford in 1993 on Forest policy in the Central Provinces .
 Nuffield College
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nuffield College