Weeks, P., 2000. Red-billed oxpeckers: vampires or tickbirds? Behavioral Ecology 11 (2), 154–160.
Weir, A., Hammond, P.M., 1997. Laboulbeniales on beetles: host utilization patterns and species richness of the parasites. Biodiversity and Conservation 6, 701–719.
Whinder, F., 2012. Germ theory. The Lancet Infectious Diseases 12(4), 279.
Wilson, E.O., 2014. The meaning of human existence. New York: W. W. Norton & Company.
Windsor, D.A., 1997. Equal rights for parasites. Perspectives in Biology and Medicine 40 (2), 222–229.