APA

Singer R., . (1986). Omphalinae [Clitocybeae-Tricholomataceae Basidiomycetes]. New York: Hafner.

Chicago

Singer Rolf, . 1986. Omphalinae [Clitocybeae-Tricholomataceae Basidiomycetes]. New York: Hafner.

Harvard

Singer R., . (1986). Omphalinae [Clitocybeae-Tricholomataceae Basidiomycetes]. New York: Hafner.

MLA

Singer Rolf, . Omphalinae [Clitocybeae-Tricholomataceae Basidiomycetes]. New York: Hafner. 1986.