Gaya APA
Goldberg, Susan. (2020).
National geographic #April 2020: hari bumi 2070 .
Jakarta:
National Geoghraphic Indonesia.
Gaya Chicago
Goldberg, Susan.
National geographic #April 2020: hari bumi 2070.
Jakarta:
National Geoghraphic Indonesia,
2020.
Non-fiction.
Gaya MLA
Goldberg, Susan.
National geographic #April 2020: hari bumi 2070.
Jakarta:
National Geoghraphic Indonesia,
2020.
Non-fiction.
Gaya Turabian
Goldberg, Susan.
National geographic #April 2020: hari bumi 2070.
Jakarta:
National Geoghraphic Indonesia,
2020.
Non-fiction.