Billings, H., & Billings, M. (1999). Calamities: 21 stories of disasters that touched the world--with exercises for developing reading comprehension and critical thinking skills. Jamestown Publishers.
Chicago Style (17th ed.) CitationBillings, Henry, and Melissa Billings. Calamities: 21 Stories of Disasters That Touched the World--with Exercises for Developing Reading Comprehension and Critical Thinking Skills. Lincolnwood, Ill: Jamestown Publishers, 1999.
MLA (9th ed.) CitationBillings, Henry, and Melissa Billings. Calamities: 21 Stories of Disasters That Touched the World--with Exercises for Developing Reading Comprehension and Critical Thinking Skills. Jamestown Publishers, 1999.
Warning: These citations may not always be 100% accurate.