Gaya APA
May, Rollo. (1981).
Freedom and Destiny .
United States:
W.W. Norton & Company.
Gaya Chicago
May, Rollo.
Freedom and Destiny.
United States:
W.W. Norton & Company,
1981.
Buku.
Gaya MLA
May, Rollo.
Freedom and Destiny.
United States:
W.W. Norton & Company,
1981.
Buku.
Gaya Turabian
May, Rollo.
Freedom and Destiny.
United States:
W.W. Norton & Company,
1981.
Buku.