Gaya APA
Duff, Charles, Stamford, Paul. (1957).
German For Adult .
London:
Hodder And Stoughton.
Gaya Chicago
Duff, Charles, Stamford, Paul.
German For Adult.
London:
Hodder And Stoughton,
1957.
Buku Teks.
Gaya MLA
Duff, Charles, Stamford, Paul.
German For Adult.
London:
Hodder And Stoughton,
1957.
Buku Teks.
Gaya Turabian
Duff, Charles, Stamford, Paul.
German For Adult.
London:
Hodder And Stoughton,
1957.
Buku Teks.