Cita APA

Oakeley, H. F. 1., & Braem, G. J. 1. (2011). Paphiopedilum species: The essential guide. London: Henry Oakeley.

Citación estilo Chicago

Oakeley, Henry Francis 1941-, y Guido Josef 1944- Braem. Paphiopedilum Species: The Essential Guide. London: Henry Oakeley, 2011.

Cita MLA

Oakeley, Henry Francis 1941-, y Guido Josef 1944- Braem. Paphiopedilum Species: The Essential Guide. London: Henry Oakeley, 2011.