6 1 10 GRAVETTER, Frederick J. Additional Author Forzano, Lori-Ann B. Additional Author mixed material 9781111342265 New York Wadsworth 2012 2020208000828.jpg.jpg GRAVETTER, Frederick J. Additional Author Wallnau, Larry B. Additional Author mixed material 9781111830991 New York Wadsworth 2013 41DVIyXIHVL._SX398_BO1%2C204%2C203%2C200_.jpg.jpg GRAVETTER, Frederick J. Additional Author Wallnau, Larry B. Additional Author mixed material 9781111839550 New York Wadsworth 2013 81Z2cscy7EL.jpg.jpg suplement GRAVETTER, Frederick J. Primary Author Wallnau, Larry B. Primary Author mixed material 9788000050836 Cengage Technology Learning 2017 hp_1100_fundamentals_of_social_science_and_research_textbooks_1564764688_27d7f20b0_progressive.jpg.j GRAVETTER, Frederick J. Primary Author Wallnau, Larry B. Primary Author mixed material 9789814792400 Singapore Cengage Learning 2017 statistics_for_the_behavioural_sciences_tenth_edition_1562252746_ad327ec3.jpg.jpg GRAVETTER, Frederick J. Primary Author Forzano, Lori-Ann B. Primary Author mixed material 9781305104136 USA Cengage Learning 2016 512DJ9f0w4L._SX258_BO1%2C204%2C203%2C200_.jpg.jpg