Gaya APA
Birch, beverley. (1992).
Alexander Fleming .
Jakarta:
Gramedia pustaka utama.
Gaya Chicago
Birch, beverley.
Alexander Fleming.
Jakarta:
Gramedia pustaka utama,
1992.
Text.
Gaya MLA
Birch, beverley.
Alexander Fleming.
Jakarta:
Gramedia pustaka utama,
1992.
Text.
Gaya Turabian
Birch, beverley.
Alexander Fleming.
Jakarta:
Gramedia pustaka utama,
1992.
Print.