APA (7th ed.) Citation

Walker, H. M., & Lev, J. (1958). Elementary statistical methods (Rev. ed.). Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Walker, Helen M., and Joseph Lev. Elementary Statistical Methods. Rev. ed. New York [u.a.]: Holt, Rinehart and Winston, 1958.

MLA (9th ed.) Citation

Walker, Helen M., and Joseph Lev. Elementary Statistical Methods. Rev. ed. Holt, Rinehart and Winston, 1958.