Gaya APA
Press, O, U. (. In).
Oxford Ensiklopedi Pelajar. Jilid 3 El Salvador Jeram (1995).
:
Jakarta : Grolier international, Inc. Ed. Bhs.
Gaya MLA
Press, Oxford, University.
"Oxford Ensiklopedi Pelajar. Jilid 3 El Salvador Jeram".
1995
:
Jakarta : Grolier international, Inc. Ed. Bhs,
. In.
Text.