1.
Plains Across Ordinal Scales of Psychological Development
by Unruh, John D., Jr.
ISBN: 9780252063602
List Price: $35.00
2.
Plains Across The Overland Emigrants and the Trans-Mississippi West, 1840-60
by Unruh, John D., Jr., Nunis,...
ISBN: 9780252006982
List Price: $49.95
3.