Cita APA

European Orchid Committee. (1981). Orchids hybrids: Part I, list arranged according to new registered hybrid names (grex). Germany: European Orchid Committee.

Citación estilo Chicago

European Orchid Committee. Orchids Hybrids: Part I, List Arranged According to New Registered Hybrid Names (grex). Germany: European Orchid Committee, 1981.

Cita MLA

European Orchid Committee. Orchids Hybrids: Part I, List Arranged According to New Registered Hybrid Names (grex). Germany: European Orchid Committee, 1981.