APA Style
NATIONAL GEOGRAPHIC VOL..194, NO.6 DECEMBER 1998. (1998).
CANADA:
NATIONAL GEOGRAPHIC SOCIETY.
Chicago Style
NATIONAL GEOGRAPHIC VOL..194, NO.6 DECEMBER 1998.
.
CANADA:
NATIONAL GEOGRAPHIC SOCIETY,
1998.
Text.
MLA Style
NATIONAL GEOGRAPHIC VOL..194, NO.6 DECEMBER 1998.
.
CANADA:
NATIONAL GEOGRAPHIC SOCIETY,
1998.
Text.
Turabian Style
NATIONAL GEOGRAPHIC VOL..194, NO.6 DECEMBER 1998.
CANADA:
NATIONAL GEOGRAPHIC SOCIETY,
1998.
Print.