Cita APA (7a ed.)

Ahmad, Z., Shahbaz, M. Q., & Ḥanīf, M. (2013). Two phase sampling. Cambridge Scholars Publishing.

Cita Chicago Style (17a ed.)

Ahmad, Zahoor, Muhammad Qaiser Shahbaz, y Muḥammad Ḥanīf. Two Phase Sampling. Newcastle upon Tyne: Cambridge Scholars Publishing, 2013.

Cita MLA (8a ed.)

Ahmad, Zahoor, et al. Two Phase Sampling. Cambridge Scholars Publishing, 2013.