Gaya APA
Childers, Erskine.. (1995).
The Riddle of the sands : a record of secret service / Erskine Childers .
London:
Penguin Books.
Gaya Chicago
Childers, Erskine..
The Riddle of the sands : a record of secret service / Erskine Childers.
London:
Penguin Books,
1995.
Text.
Gaya MLA
Childers, Erskine..
The Riddle of the sands : a record of secret service / Erskine Childers.
London:
Penguin Books,
1995.
Text.
Gaya Turabian
Childers, Erskine..
The Riddle of the sands : a record of secret service / Erskine Childers.
London:
Penguin Books,
1995.
Print.