APA Style
Garret, Wilbur E.. (1984).
National geographic index 1947-1983 .
Washington:
National Georaphic Society.
Chicago Style
Garret, Wilbur E..
National geographic index 1947-1983.
Washington:
National Georaphic Society,
1984.
Buku Teks.
MLA Style
Garret, Wilbur E..
National geographic index 1947-1983.
Washington:
National Georaphic Society,
1984.
Buku Teks.
Turabian Style
Garret, Wilbur E..
National geographic index 1947-1983.
Washington:
National Georaphic Society,
1984.
Buku Teks.