APA citiranje

HARPER, W., & HARPER, W. (1976). Statistics W.m. Harper. Macdonald and Evans.

Chicago Style (17th ed.) Citation

HARPER, W.M, and W.M HARPER. Statistics W.m. Harper. Macdonald and Evans, 1976.

MLA citiranje

HARPER, W.M, and W.M HARPER. Statistics W.m. Harper. Macdonald and Evans, 1976.