Search Constraints
Filtering by:
Contributor
Rensch, Dick A.
Remove constraint Contributor: Rensch, Dick A.
Collection
PA Incorporation Era (1981-1990)
Remove constraint Collection: PA Incorporation Era (1981-1990)
Subject
Data Collection -- methods
Remove constraint Subject: Data Collection -- methods
Year
1980 to 1984
Remove constraint Year: <span class='from'>1980</span> to <span class='to'>1984</span>