Montifringilla theresae Summers-Smith, J. Denis. The House Sparrow. New Naturalist 1st. London: Collins. 1963. Summers-Smith, J. Denis. The Sparrows. illustrated
Summers-Smith, J. Denis. The Sparrows. illustrated by Robert Gillmor. Calton, Staffs, England: T. & A. D. Poyser. 1988. ISBN 0-85661-048-8. Summers-Smith
the Family Fringillidæ XII. London: Taylor and Francis. 1888. Summers-Smith, J. Denis. The Sparrows: a study of the genus Passer. illustrated by Robert
0-691-03424-9. Summers-Smith, J. Denis. The Sparrows. Calton, Staffs, England: T. & A. D. Poyser. 1988. ISBN 0-85661-048-8. Summers-Smith, J. Denis. Family