APA

Werff H. V. D., .Substrate preference of lauranceae and ferns in the Iquitos area, Peru. : .

Chicago

Werff Henk Van Der, .Substrate preference of lauranceae and ferns in the Iquitos area, Peru. : .

Harvard

Werff H. V. D., .Substrate preference of lauranceae and ferns in the Iquitos area, Peru. : .

MLA

Werff Henk Van Der, .: . .