Gaya APA
Nasr, S, H. (1997).
Man and nature: the spiritual crisis in modern man / Seyyed Hossein Nasr .
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ABC International Group.
Gaya MLA
Nasr, Seyyed, Hossein.
"Man and nature: the spiritual crisis in modern man / Seyyed Hossein Nasr".
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ABC International Group,
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Referensi.