Cita APA

Brown, P. M. 1., & Folsom, S. (1997). Wild orchids of the Northeastern United States: A field and study guide to the orchids growing wild in New England, New York, and adjacent Pennsylvania and New Jersey. Ithaca: Comstock Publishing Associates.

Citación estilo Chicago

Brown, Paul Martin 1945-, y Stan Folsom. Wild Orchids of the Northeastern United States: A Field and Study Guide to the Orchids Growing Wild in New England, New York, and Adjacent Pennsylvania and New Jersey. Ithaca: Comstock Publishing Associates, 1997.

Cita MLA

Brown, Paul Martin 1945-, y Stan Folsom. Wild Orchids of the Northeastern United States: A Field and Study Guide to the Orchids Growing Wild in New England, New York, and Adjacent Pennsylvania and New Jersey. Ithaca: Comstock Publishing Associates, 1997.