Gaya APA
      O'Sullivan, E. (1999).
    Transformative learning: Educational vision for the 21st century. Foreword by Thomas Berry.    .
     London:
   London Zed Books.
  
Gaya MLA
      O'Sullivan, Edmund.
    "Transformative learning: Educational vision for the 21st century. Foreword by Thomas Berry.   ".
    
     London:
   London Zed Books,
  1999.
  Buku.