Robert T. Clifton

• Barbs, prongs, points, prickers and stickers
• Barbs, Prongs, Points, Prickers, and Stickers; A Complete and Illustrated Catalogue of Antique Barbed Wire
• Barbs, prongs, points, prickers, & stickers
• Clifton's field-guide for barbed wire collectors
• Gender differences in the relationships among self-confidence, gender-appropriateness, and value