APA

Evans Schultes R., .Plantae Colombianae I, a new species of Herrania from the Putumayo. : .

Chicago

Evans Schultes Richard, .Plantae Colombianae I, a new species of Herrania from the Putumayo. : .

Harvard

Evans Schultes R., .Plantae Colombianae I, a new species of Herrania from the Putumayo. : .

MLA

Evans Schultes Richard, .: . .