Gaya APA
SPERRY,Armstrong. (1940).
Call It Courage .
New York:
Scholastic Inc.
Gaya Chicago
SPERRY,Armstrong.
Call It Courage.
New York:
Scholastic Inc,
1940.
Teks.
Gaya MLA
SPERRY,Armstrong.
Call It Courage.
New York:
Scholastic Inc,
1940.
Teks.
Gaya Turabian
SPERRY,Armstrong.
Call It Courage.
New York:
Scholastic Inc,
1940.
Teks.