APA Style
Frye, Northrop. ().
Pakistan year book 1980-81 .
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Chicago Style
Frye, Northrop.
Pakistan year book 1980-81.
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,
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MLA Style
Frye, Northrop.
Pakistan year book 1980-81.
:
,
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.
Turabian Style
Frye, Northrop.
Pakistan year book 1980-81.
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,
.
.