1. 1. A. L. Strand, 1933 . Ninth biennial report, Montana State Board of Entomology. pp.18 -47 .
2. Rocky Mountain Spotted Fever: Vaccination of Monkeys and Man
3. 4. R. A. Cooley, 1926 . Sixth biennial report, Montana State Board of Entomology, pp.18 -19 .
4. 5. R. R. Parker Correspondence to R. A. Cooley, 26 February 1928.