Joan Hirt

By Steven Janosik, Diane Cooper, Sue Saunders, Joan Hirt

Edited By Ashley Tull, Joan B. Hirt, Sue Saunders

By Steven M. Janosik, Don G. Creamer, Joan B. Hirt, Roger B. Winston, Sue A. Saunders, Diane L. Cooper

By John M. Levy, Sonia A. Hirt, Casey J. Dawkins

Edited By Sonia Hirt, Diane Zahm

By V. Ruttan, C. Thirtle

Edited By Robert P Hirt, David S. Horner

Edited By J. R. McWhirter

By Colin G Thirtle

By William L. Baldwin, John T. Scott, Colin F. Thirtle, Vernon W. Ruttan

By Duncan Bootland, Evan Coughlan, Robert Galloway, Emily McWhirter

Edited By Parneeta Dhaliwal, Manpreet Kaur, Hardeo Kumar Thakur, Rajeev Kumar Arya, Joan Lu