YorktownLinda G. Cooper, Adele Hobby, John Tegeder, Susan Hack-Lane · First published 2008Open the Tome
Houghton Mifflin Mathematics (Practice Activities, Enrichment Activities, and Tests, Level 6)Ernest R. Duncan, W. G. Quast, Mary Ann Haubner, William L. Cole, Linda M. Gemmill, Charles E. Allen, Ann M. Cooper, Lelon R. Capps · First published 1985Open the Tome
