Armbruster, B. B., Lehr, F., & Osborn, J. (2001). Put reading first the research building blocks for teaching children to read : kindergarten through grade 3 / [writers, Bonnie B. Armbruster, Fran Lehr, Jean Osborn]: The research building blocks for teaching children to read : kindergarten through grade 3 / [writers, Bonnie B. Armbruster, Fran Lehr, Jean Osborn]. [Washington, D.C.]: National Institute for Literacy, National Institute of Child Health and Human Development, U.S. Dept. of Education.

Armbruster, Bonnie B., Fran Lehr, and Jean Osborn. Put Reading First the Research Building Blocks for Teaching Children to Read : Kindergarten Through Grade 3 / [writers, Bonnie B. Armbruster, Fran Lehr, Jean Osborn]: The Research Building Blocks for Teaching Children to Read : Kindergarten Through Grade 3 / [writers, Bonnie B. Armbruster, Fran Lehr, Jean Osborn]. [Washington, D.C.]: National Institute for Literacy, National Institute of Child Health and Human Development, U.S. Dept. of Education, 2001.

Armbruster, Bonnie B., Fran Lehr, and Jean Osborn. Put Reading First the Research Building Blocks for Teaching Children to Read : Kindergarten Through Grade 3 / [writers, Bonnie B. Armbruster, Fran Lehr, Jean Osborn]: The Research Building Blocks for Teaching Children to Read : Kindergarten Through Grade 3 / [writers, Bonnie B. Armbruster, Fran Lehr, Jean Osborn]. [Washington, D.C.]: National Institute for Literacy, National Institute of Child Health and Human Development, U.S. Dept. of Education, 2001.