APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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