Abbott Handerson Thayer

An arraignment of the theories of mimicry and warning colors

Popular Science Monthly, Vol. 75, The Science Press, New York dicembre 1909, pp. 550-570.

Gerald Handerson Thayer

Concealing-coloration in the animal kingdom. An exposition of the laws of disguise through color and pattern: being a summary of Abbott H. Thayer's discoveries

The Macmillan Co., New York 1909.

Alessandro Verri

Lettera di Alessandro Verri a Gian Rinaldo Carli

Pagine Istriane. Periodico mensile scientifico, letterario, artistico, N. 4-5, Capodistria aprile 1909, p. 108.