Cita APA

Black, P. M. 1., Rysy, W., & Rittershausen, W. (1998). Orchid growing (Second edition revised.). London: Ward Lock.

Citación estilo Chicago

Black, Peter McKenzie 1903?-1983, Wolfgang Rysy, y Wilma Rittershausen. Orchid Growing. Second edition revised. London: Ward Lock, 1998.

Cita MLA

Black, Peter McKenzie 1903?-1983, Wolfgang Rysy, y Wilma Rittershausen. Orchid Growing. Second edition revised. London: Ward Lock, 1998.