APA
International Development Association, . (1970). IDA 50 questions and answers. [Washington]: .
Chicago
International Development Association, . 1970. IDA 50 questions and answers. [Washington]: .
Harvard
International Development Association, . (1970). IDA 50 questions and answers. [Washington]: .
MLA
International Development Association, . IDA 50 questions and answers. [Washington]: . 1970.