APA (7a ed.)

Singer, R. (1962). Monographs of south american Basidiomycetes, especially those of the east slope of the Andes and Brazil. 5. Gastromycetes with agaricoid affinities (Secotiaceous Hymenogastrineae and related forms) / R. Singer. Boletín de la Sociedad Argentina de Botánica, 10(1).