Gaya APA
Angel, E. (1949).
Thomas Alva Edison .
Jakarta:
Balai Pustaka.
Gaya Chicago
Angel, E.
Thomas Alva Edison.
Jakarta:
Balai Pustaka,
1949.
Text.
Gaya MLA
Angel, E.
Thomas Alva Edison.
Jakarta:
Balai Pustaka,
1949.
Text.
Gaya Turabian
Angel, E.
Thomas Alva Edison.
Jakarta:
Balai Pustaka,
1949.
Print.