Billings, H., & Billings, M. (1999). Eureka!: 21 stories of momentous discoveries and inventions : with exercises for developing reading comprehension and critical thinking skills. Jamestown Publishers.
Chicago Style (17th ed.) CitationBillings, Henry, and Melissa Billings. Eureka!: 21 Stories of Momentous Discoveries and Inventions : With Exercises for Developing Reading Comprehension and Critical Thinking Skills. Lincolnwood, IL: Jamestown Publishers, 1999.
MLA (9th ed.) CitationBillings, Henry, and Melissa Billings. Eureka!: 21 Stories of Momentous Discoveries and Inventions : With Exercises for Developing Reading Comprehension and Critical Thinking Skills. Jamestown Publishers, 1999.
Warning: These citations may not always be 100% accurate.