APA
Pagan A., Adrian Pagan & Aman Ullah. (1999). Nonparametric Econometrics. United Kindom: Cambridge University Press.
Chicago
Pagan Adrian, Adrian Pagan and Aman Ullah. 1999. Nonparametric Econometrics. United Kindom: Cambridge University Press.
Harvard
Pagan A., Adrian Pagan and Aman Ullah. (1999). Nonparametric Econometrics. United Kindom: Cambridge University Press.
MLA
Pagan Adrian, Adrian Pagan and Aman Ullah. Nonparametric Econometrics. United Kindom: Cambridge University Press. 1999.