American Civil War reference library cumulative index

Cold war

Math and mathematicians: the history of math discoveries around the world

Gilded Age and Progressive Era reference library

Reconstruction era

American decades primary sources

American Revolution

Reconstruction Era Reference Library Cumulative Index Edition 1.

Bowling, beatniks, and bell-bottoms

Cold War Reference Library Cumulative Index Edition 1. (U-X-L Cold War Reference Library)

Gilded Age & Progressive Era Reference Library Cumulative Index (UXL Gilded Age and Progressive Era Reference Library)