Spectrum (Compiler)
"Spectrum" is not identifiable from the provided results as a specific human author or compiler. The search results point instead to unrelated works and programs named Spectrum, including a stellar spectral synthesis program and references to the ZX Spectrum computer, so there is insufficient evidence to write a reliable biography for an author/compiler by that name.
Spectrum Spelling, Grade 5
Spectrum Spelling, Grade 3
Spectrum Test Prep, Grade 3
Common Core Language Arts and Math, Grade 3
Spectrum Test Prep, Grade 6
Common Core Language Arts and Math, Grade 1
Spectrum Grade 2
Spectrum Spelling, Grade 6
Spectrum Test Prep, Grade 2
Common Core Language Arts and Math, Grade 5
Spectrum Test Prep, Grade 4
Multiplication Workbook, Grade 3
Common Core Language Arts and Math, Grade 4
Spectrum Test Prep, Grade 5
Spectrum Test Prep, Grade 1
Multiplication Workbook, Grade 4
Common Core Language Arts and Math, Grade K