APA (7th ed.) Citation

Aslam, M. (1973). On ratio method of estimation in a heirarchical sample survey design [microform]. Photoduplication Service.

Chicago Style (17th ed.) Citation

Aslam, Muhammad. On Ratio Method of Estimation in a Heirarchical Sample Survey Design [microform]. Quezon City: Photoduplication Service, 1973.

MLA (9th ed.) Citation

Aslam, Muhammad. On Ratio Method of Estimation in a Heirarchical Sample Survey Design [microform]. Photoduplication Service, 1973.