Gaya APA
Encyclopaedia Britanica Volume 21. (1963).
Chicago:
William Benton.
Gaya Chicago
Encyclopaedia Britanica Volume 21.
.
Chicago:
William Benton,
1963.
Printed Book.
Gaya MLA
Encyclopaedia Britanica Volume 21.
.
Chicago:
William Benton,
1963.
Printed Book.
Gaya Turabian
Encyclopaedia Britanica Volume 21.
Chicago:
William Benton,
1963.
Printed Book.