APA

Killip E. P., .Suplemental notes on the american species of Passifloraceae, with descriptions of new species. : .

Chicago

Killip Ellsworth P, .Suplemental notes on the american species of Passifloraceae, with descriptions of new species. : .

Harvard

Killip E. P., .Suplemental notes on the american species of Passifloraceae, with descriptions of new species. : .

MLA

Killip Ellsworth P, .: . .