Houghton Mifflin Pupil TextErnest R. Duncan, Lelon R. Capps, W. G. Quast, Mary Ann Haubner · First published 1991Open 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
Mathematics Problem Solving Activities - Mathematics Problem Solving Activities, Math, Word Problems, Adding, Subtracting,Lelon R. Capps and Earl C. Leggette · First published 1978Open the Tome
Modern School Mathematics Structure and UseErnest R. Duncan, Lelon R. Capps, Mary P. Dolciani, W. G. Quast, Andrew J. Zweng · First published 1972Open the Tome