APA Style

Witherell, N, L., McMackin, M, C. (2007). Teaching Vocabulary : Through Differentiated Instruction With Leveled Graphic Organizers - Grades 4-8 . USA: Scholastic.

MLA Style

Witherell, Nancy, L.., McMackin, Mary, C.. "Teaching Vocabulary : Through Differentiated Instruction With Leveled Graphic Organizers - Grades 4-8". USA: Scholastic, 2007. Printed Book.