Dairy microbiology — Audiobooks

Outlines of dairy bacteriology, 10th edition A concise manual for the use of students in dairying
by H. L. (Harry Luman) Russell, E. G. (Edwin George) Hastings

Outlines of Dairy Bacteriology, 8th edition A Concise Manual for the Use of Students in Dairying
by H. L. (Harry Luman) Russell

Dairy Disagreeables Busy the Bacteriologists
by Frank H. (Frank Henry) Hall, Harry Alexis Harding, L. A. (Lore Alford) Rogers, George A. Smith