Gaya APA
Grimnamu, .
(2014).
Why? people: Stephen Hawking
(
Cet. 1)
.
Jakarta:
Elex Media Komputindo.
Gaya MLA
Grimnamu, .
"Why? people: Stephen Hawking".
Cet. 1
Jakarta:
Elex Media Komputindo,
2014.
Equipment.