Waddell, L. M. (1980). Unity from diversity: Extracts from selected Pennsylvania colonial documents, 1681 to 1780, in commemoration of the tercentenary of the Commonwealth. Harrisburg: Commonwealth of Pennsylvania, Pennsylvania Historical and Museum Commission.

Waddell, Louis M. Unity From Diversity: Extracts From Selected Pennsylvania Colonial Documents, 1681 to 1780, in Commemoration of the Tercentenary of the Commonwealth. Harrisburg: Commonwealth of Pennsylvania, Pennsylvania Historical and Museum Commission, 1980.

Waddell, Louis M. Unity From Diversity: Extracts From Selected Pennsylvania Colonial Documents, 1681 to 1780, in Commemoration of the Tercentenary of the Commonwealth. Harrisburg: Commonwealth of Pennsylvania, Pennsylvania Historical and Museum Commission, 1980.