Gaya APA

SIEGEL, S., John, C, J, N. (1988). NONPARAMETRIC STATISTICS FOR THE BEHAVIORAL SCIENCES (2). Singapore: MCGRAW-HILL, INC..

Gaya MLA

SIEGEL, Sidney., John, Castellan, Jr.,, N.. "NONPARAMETRIC STATISTICS FOR THE BEHAVIORAL SCIENCES". 2 Singapore: MCGRAW-HILL, INC., 1988. Text.