Gaya APA
Black, John D.. (1931).
Research in agricultural credit : scope and method John D. Black .
New York:
Social Science Research Council.
Gaya Chicago
Black, John D..
Research in agricultural credit : scope and method John D. Black.
New York:
Social Science Research Council,
1931.
Text.
Gaya MLA
Black, John D..
Research in agricultural credit : scope and method John D. Black.
New York:
Social Science Research Council,
1931.
Text.
Gaya Turabian
Black, John D..
Research in agricultural credit : scope and method John D. Black.
New York:
Social Science Research Council,
1931.
Print.