The Hog Louse, Haematopinus Suis Linné: Its Biology, Anatomy ..., Volumele 48-55
De Chih Ping, Cornell University. Agricultural Experiment Station, Deane Phillips, Ernest Gustav Anderson, Harry E. Knowlton, Ira Myron Hawley, Laura Florence, Leonard Amby Maynard, Sarkis Boshnakian
