APA

Halling R. E., .Two new Crinipellinae (<Tricholomataceae: Marasmiae>) from south America. : .

Chicago

Halling Roy E, .Two new Crinipellinae (<Tricholomataceae: Marasmiae>) from south America. : .

Harvard

Halling R. E., .Two new Crinipellinae (<Tricholomataceae: Marasmiae>) from south America. : .

MLA

Halling Roy E, .: . .