APA aipamena

Walker, H. M., & Lev, J. (1958). Elementary statistical methods. Oxford and IBH.

Chicago Style aipamena

Walker, Helen M., and Joseph Lev. Elementary Statistical Methods. New Delhi: Oxford and IBH, 1958.

MLA aipamena

Walker, Helen M., and Joseph Lev. Elementary Statistical Methods. Oxford and IBH, 1958.