APA Citation

Stephenson, H., Hughes, J., & Dummtt, P. (2019). Life 4 (Second edition.). Massachusetts, Estados Unidos: National Geographic Learning.

Chicago Style Citation

Stephenson, Helen, John Hughes, and Paul Dummtt. Life 4. Second edition. Massachusetts, Estados Unidos: National Geographic Learning, 2019.

MLA Citation

Stephenson, Helen, John Hughes, and Paul Dummtt. Life 4. Second edition. Massachusetts, Estados Unidos: National Geographic Learning, 2019.

Warning: These citations may not always be 100% accurate.