Cita APA

Darwin, C. R. 1., & Williams, N. H. (1979). Fertilization of orchids by insects. Stanfordville, New York: Earl M. Coleman, Publisher.

Citación estilo Chicago

Darwin, Charles Robert 1809-1882, y Norris H. Williams. Fertilization of Orchids By Insects. Stanfordville, New York: Earl M. Coleman, Publisher, 1979.

Cita MLA

Darwin, Charles Robert 1809-1882, y Norris H. Williams. Fertilization of Orchids By Insects. Stanfordville, New York: Earl M. Coleman, Publisher, 1979.