Cita APA

Webster, P. (1992). The orchid genus book: A study guide for the orchid family. United States of America: [editor no identificado].

Citación estilo Chicago

Webster, Patsy. The Orchid Genus Book: A Study Guide for the Orchid Family. United States of America: [editor no identificado], 1992.

Cita MLA

Webster, Patsy. The Orchid Genus Book: A Study Guide for the Orchid Family. United States of America: [editor no identificado], 1992.