作者 | Ontario Agricultural College. Department of Physics. (1919-1945 : Blackwood) / F. C. Fasken / L. N. Johnson / P. G. Ingram / E. R. Sexsmith / Edward M. Carter / G. R. Thorpe / B. G. C. Bourne / H. E. Trent / W. D. Tolton / George Irving Christie / Ontario Agricultural College. Students / Ontario Agricultural College. Students. (1939-1942) / O'Keeffes Photographer (Guelph, Ont.) |