Gaya APA
Grolier, International. (1980).
The New Book of Popular Science vol.2: Earth Sciences-Energy-Environmental Sciences (Cet.1).
USA:
Grolier.
Gaya Chicago
Grolier, International.
The New Book of Popular Science vol.2: Earth Sciences-Energy-Environmental Sciences.
Cet.1
USA:
Grolier,
1980.
Text.
Gaya MLA
Grolier, International.
The New Book of Popular Science vol.2: Earth Sciences-Energy-Environmental Sciences.
Cet.1
USA:
Grolier,
1980.
Text.
Gaya Turabian
Grolier, International.
The New Book of Popular Science vol.2: Earth Sciences-Energy-Environmental Sciences.
Cet.1
USA:
Grolier,
1980.
Print.