Thoms, B. (2009). Bulbophyllums: The incomplete guide, from A to Why? Valrico, FL, USA: Bill Thoms.
Citación estilo ChicagoThoms, Bill. Bulbophyllums: The Incomplete Guide, From A to Why? Valrico, FL, USA: Bill Thoms, 2009.
Cita MLAThoms, Bill. Bulbophyllums: The Incomplete Guide, From A to Why? Valrico, FL, USA: Bill Thoms, 2009.
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