APA Style

Spectrum, . (2015). Spectrum 4th Grade Science Workbooks, Ages 9 to 10, 4th Grade Science, Physical, Space, Earth, and Life Science, the History and Nature of Science With Research Activities . Greensboro, NC: Spectrum.

MLA Style

Spectrum, . "Spectrum 4th Grade Science Workbooks, Ages 9 to 10, 4th Grade Science, Physical, Space, Earth, and Life Science, the History and Nature of Science With Research Activities". Greensboro, NC: Spectrum, 2015. Text.