Cita APA (7th ed.)
Ahmad, Z., Shahbaz, M. Q., & Ḥanīf, M. (2013). Two phase sampling. Cambridge Scholars Publishing.
Cita Chicago (17th ed.)
Ahmad, Zahoor, Muhammad Qaiser Shahbaz, i Muḥammad Ḥanīf. Two Phase Sampling. Newcastle upon Tyne: Cambridge Scholars Publishing, 2013.
Cita MLA (9th ed.)
Ahmad, Zahoor, et al. Two Phase Sampling. Cambridge Scholars Publishing, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.