APA
Ullah A., .Handbook of Empirical Economics and Finance. : Chapman and Hall/crc.
Chicago
Ullah Aman, .Handbook of Empirical Economics and Finance. : Chapman and Hall/crc.
Harvard
Ullah A., .Handbook of Empirical Economics and Finance. : Chapman and Hall/crc.
MLA
Ullah Aman, .: Chapman and Hall/crc. .