Gaya APA
Ustinov, Peter. (1966).
The Frontiers Of The Sea .
London:
Heinemann.
Gaya Chicago
Ustinov, Peter.
The Frontiers Of The Sea.
London:
Heinemann,
1966.
.
Gaya MLA
Ustinov, Peter.
The Frontiers Of The Sea.
London:
Heinemann,
1966.
.
Gaya Turabian
Ustinov, Peter.
The Frontiers Of The Sea.
London:
Heinemann,
1966.
.