Yellowstone's BirdsDouglas W. Smith, Lauren Walker, Katharine E. Duffy, Robert K. Landis · First published 2023Open the Tome
Service-Learning Course Design for Community CollegesMarina Baratian, Donna Killian Duffy, Robert Franco, Amy E. Hendricks, Tanya Renner · First published 2007Open the Tome
Modern automotive technologyDuffy, James E., James E. Duffy, Tonkov, Fuki, Peter A. Fox, Robert M. Kerr · First published 1993Open the Tome
