Cita APA (7th ed.)

Lötschert, W., & Beese, G. (1987). Collins guide to tropical plants. Collins.

Cita Chicago (17th ed.)

Lötschert, Wilhelm, i Gerhard Beese. Collins Guide to Tropical Plants. London: Collins, 1987.

Cita MLA (9th ed.)

Lötschert, Wilhelm, i Gerhard Beese. Collins Guide to Tropical Plants. Collins, 1987.