Cita APA (7a ed.)

Darnell, A. W. Orchids for the outdoor garden: A descriptive list of the world's orchids, for the use of amateur gardeners.

Cita Chicago Style (17a ed.)

Darnell, Anthony William. Orchids for the Outdoor Garden: A Descriptive List of the World's Orchids, for the Use of Amateur Gardeners.

Cita MLA (8a ed.)

Darnell, Anthony William. Orchids for the Outdoor Garden: A Descriptive List of the World's Orchids, for the Use of Amateur Gardeners.