Vaccination and Its Critics: A Documentary and Reference Guide
US Supreme Court Landmark Cases: Desegregating Schools: Brown v. Board of Education
Hidden Heroes: Women with Wings: Women Pilots of World War II
Collective Biographies: Women Scientists and Inventors
US Supreme Court Landmark Cases: Marriage Equality: Obergefell v. Hodges
National Parks: Glacier National Park
The Bill of Rights: Freedom of Speech, the Press, and Religion: The First Amendment
National Parks: Grand Canyon National Park
Race in American Film: Voices and Visions That Shaped a Nation
National Parks: Yosemite National Park
Women in Science: Jane Goodall: Primatologist and UN Messenger of Peace
National Parks: Everglades National Park
Hidden Heroes: The Stonewall Riots: The Fight for LGBT Rights
Encyclopedia of American Civil Rights and Liberties
The Nile: An Encyclopedia of Geography, History, and Culture
National Parks: Great Smoky Mountains National Park
Defying Convention: Women Who Changed the Rules: Women Writers
American Citizenship: Constitutional Rights
Great Events in Religion: An Encyclopedia of Pivotal Events in Religious History