Gaya APA
Pollard, Michael. (1992).
Alexander Graham Bell .
Jakarta:
Gramedia pustaka utama.
Gaya Chicago
Pollard, Michael.
Alexander Graham Bell.
Jakarta:
Gramedia pustaka utama,
1992.
Text.
Gaya MLA
Pollard, Michael.
Alexander Graham Bell.
Jakarta:
Gramedia pustaka utama,
1992.
Text.
Gaya Turabian
Pollard, Michael.
Alexander Graham Bell.
Jakarta:
Gramedia pustaka utama,
1992.
Print.