Encyclopedia of knowledge : volume 5
Grolier Incorporated, 1991
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The Encyclopedia Americana : volume 5
Grolier, 1994
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Encyclopedia of bioethics : volume 5
Warren Thomas Reich, editor in chief
Simon & Schuster Macmillan, 1995
Buku Referensi
The Encyclopedia Americana : volume 5
Americana Corporation, 1977
Buku Referensi
The Encyclopedia Americana : volume 5
Americana Corporation, 1964
Buku Referensi