Gaya APA
Sobel, Robert. (1963).
Basic Facts of United States history (First edition).
New York:
Collier Books.
Gaya Chicago
Sobel, Robert.
Basic Facts of United States history.
First edition
New York:
Collier Books,
1963.
Text.
Gaya MLA
Sobel, Robert.
Basic Facts of United States history.
First edition
New York:
Collier Books,
1963.
Text.
Gaya Turabian
Sobel, Robert.
Basic Facts of United States history.
First edition
New York:
Collier Books,
1963.
Print.