Gaya APA
Grolier, . (1980).
The New Book Of Popular Science Volume 1 - Astronomy & Space Science Computers & Mathematics (1).
Canada:
Grolier.
Gaya MLA
Grolier, .
"The New Book Of Popular Science Volume 1 - Astronomy & Space Science Computers & Mathematics".
1
Canada:
Grolier,
1980.
Text.