APA

Ward B., . (1965). Five ideas that change the World. : English Language Book Society, London.

Chicago

Ward Barbara, . 1965. Five ideas that change the World. : English Language Book Society, London.

Harvard

Ward B., . (1965). Five ideas that change the World. : English Language Book Society, London.

MLA

Ward Barbara, . Five ideas that change the World. : English Language Book Society, London. 1965.