Não informado. (2021). Annual Report of the Canal Zone Plant Introduction Gardens. Panama Canal Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the Canal Zone Plant Introduction Gardens. Panamá: Panama Canal Press, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annual Report of the Canal Zone Plant Introduction Gardens. Panama Canal Press, 2021.
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