Cita APA

Lellinger, D. B. (1989). The Ferns and fern-allies of Costa Rica, Panamá and Chóco (Part 1: Psilotaceae through Dicksoniaceae. Washingthon, D. C.: American Fern Society.

Citación estilo Chicago

Lellinger, David B. The Ferns and Fern-allies of Costa Rica, Panamá and Chóco (Part 1: Psilotaceae Through Dicksoniaceae. Washingthon, D. C.: American Fern Society, 1989.

Cita MLA

Lellinger, David B. The Ferns and Fern-allies of Costa Rica, Panamá and Chóco (Part 1: Psilotaceae Through Dicksoniaceae. Washingthon, D. C.: American Fern Society, 1989.