Gaya APA

WAMPOLD, B, E., DREW, C, J. (1990). THEORY AND APPLICATION OF STATISTICS (ed.1). SINGAPORE: MC GRAW HILL.

Gaya MLA

WAMPOLD, BRUCE, E.., DREW, CLIFFORD, J.. "THEORY AND APPLICATION OF STATISTICS". ed.1 SINGAPORE: MC GRAW HILL, 1990. Text.