J. Ross Robertson Ornithological Collecton [microform]Charles W. (Charles William) . Nash, Toronto Public LibraryHäftad, 2021239 kr
Check List of the Vertebrates of Ontario and Catalogue of Specimens in the Biological Section of the Provincial Museum [microform]Charles W. (Charles William) . Nash, Ontario Dept of EducationHäftad, 2021259 kr
Rations for Dairy Cows and Other Matters of Interest to Dairymen [microform]George E. (George Edward) B. Day, Ontario Agricultural College, Ontario Dept of AgricultureHäftad, 2021209 kr
Farm Water Supply and Sewage Disposal [microform]W. H. Day, Ontario Dept of AgricultureHäftad, 2021229 kr
Better Bulls [microform]H. S. (Herbert Samuel) B. Arkell, Ontario Dept of AgricultureHäftad, 2021229 kr
Dairy School Bulletin, Part I [microform]R. (Robert) B. Harcourt, Ontario Dept of AgricultureHäftad, 2021229 kr
Milking Machines [microform]H. H. (Henry Hoshel) Dean, S. F. Edwards, Ontario Dept of AgricultureHäftad, 2021209 kr