Gaya APA
Duxbury, A, C., Duxbury, A. (1984).
An introduction to the world's oceans .
London:
Addison Wesley Publishing.
Gaya MLA
Duxbury, Alyn, C.., Duxbury, Alison..
"An introduction to the world's oceans".
London:
Addison Wesley Publishing,
1984.
Printed Book.