Gaya APA
Hawking, Stephen W. (1993).
Black holes and baby universe : and other essays .
New York:
Bantam Books.
Gaya Chicago
Hawking, Stephen W.
Black holes and baby universe : and other essays.
New York:
Bantam Books,
1993.
Text.
Gaya MLA
Hawking, Stephen W.
Black holes and baby universe : and other essays.
New York:
Bantam Books,
1993.
Text.
Gaya Turabian
Hawking, Stephen W.
Black holes and baby universe : and other essays.
New York:
Bantam Books,
1993.
Print.