APA Style

WARDS, L, E. (2006). SINGLE OF A SINGLE VARIABLE 8TH ED . BOSTON: HOUGHTON MIFFLIN COMPANY.

MLA Style

WARDS, LARSON,HOSTETLER/, ED. "SINGLE OF A SINGLE VARIABLE 8TH ED". BOSTON: HOUGHTON MIFFLIN COMPANY, 2006. Text.