APA Style

Publishing, H, M. (2012). Science Fusion, Grade 1 Teacher Guide Unit 5: Environments . USA: Houghton Mifflin Harcourt Publishing Company.

MLA Style

Publishing, Houghton, Mifflin. "Science Fusion, Grade 1 Teacher Guide Unit 5: Environments". USA: Houghton Mifflin Harcourt Publishing Company, 2012. Printed Book.