Gaya APA
Kopper, Philip. (1982).
The National Museum of Natural History .
New York:
Harry N. Abrams, Inc..
Gaya Chicago
Kopper, Philip.
The National Museum of Natural History.
New York:
Harry N. Abrams, Inc.,
1982.
Buku Teks.
Gaya MLA
Kopper, Philip.
The National Museum of Natural History.
New York:
Harry N. Abrams, Inc.,
1982.
Buku Teks.
Gaya Turabian
Kopper, Philip.
The National Museum of Natural History.
New York:
Harry N. Abrams, Inc.,
1982.
Buku Teks.