Citazione Stile APA (7a Edizione)

THOMAS T. (1993). TO CHALLENGE AND TO CHANGE. PENGUIN BOOKS INDIA (P) LTD.

Citazione stile Chigago Style (17a edizione)

THOMAS T. TO CHALLENGE AND TO CHANGE. NEW DELHI: PENGUIN BOOKS INDIA (P) LTD, 1993.

Citatione MLA (9a ed.)

THOMAS T. TO CHALLENGE AND TO CHANGE. PENGUIN BOOKS INDIA (P) LTD, 1993.