WANSINK D (1989) Boekbesprekingen: Snow, B. ... (et al.), Birds and berries; a study of an ecological interaction, 1988. LIMOSA 62 (3): 165-166.

SNOW B. & SNOW D. 1988. Birds and berries; a study ofan ecological interaction. Poyser, Calton. 268 p.

[gratis pdf] [english summary]