APA Style
Zeleny, Robert O.. (1992).
World Book 1992 Science Year .
:
.
Chicago Style
Zeleny, Robert O..
World Book 1992 Science Year.
:
,
1992.
Teks.
MLA Style
Zeleny, Robert O..
World Book 1992 Science Year.
:
,
1992.
Teks.
Turabian Style
Zeleny, Robert O..
World Book 1992 Science Year.
:
,
1992.
Teks.