APA (7th ed.) Citation

Billings, H., & Billings, M. (1999). Heroes: 21 true stories of courage and honor-with exercises for developing reading comprehension and critical thinking skills (2nd ed.). Jamestown.

Chicago Style (17th ed.) Citation

Billings, Henry, and Melissa Billings. Heroes: 21 True Stories of Courage and Honor-with Exercises for Developing Reading Comprehension and Critical Thinking Skills. 2nd ed. Lincolnwood, IL: Jamestown, 1999.

MLA (9th ed.) Citation

Billings, Henry, and Melissa Billings. Heroes: 21 True Stories of Courage and Honor-with Exercises for Developing Reading Comprehension and Critical Thinking Skills. 2nd ed. Jamestown, 1999.