Quisumbing, E. A. Philippine orchids and their culture. Philippine Orchid Sorciety].
Lua i Stíl Chicago (17ú heag.)Quisumbing, Eduardo Arguelles. Philippine Orchids and Their Culture. [Manila: Philippine Orchid Sorciety].
Lua MLA (9ú heag.)Quisumbing, Eduardo Arguelles. Philippine Orchids and Their Culture. Philippine Orchid Sorciety].
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