Bernabei, G. (2015). Grammar keepers: Lessons that tackle students' most persistent problems once and for all, grades 4-12. Corwin Literacy.
Citace podle Chicago (17th ed.)Bernabei, Gretchen. Grammar Keepers: Lessons That Tackle Students' Most Persistent Problems Once and for All, Grades 4-12. Thousand Oaks, California: Corwin Literacy, 2015.
Citace podle MLA (9th ed.)Bernabei, Gretchen. Grammar Keepers: Lessons That Tackle Students' Most Persistent Problems Once and for All, Grades 4-12. Corwin Literacy, 2015.
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