Não informado. (2021). Annual Report of the Canal Zone Plant Introduction Gardens. Panama Canal Press.
Chicago-Zitierstil (17. Ausg.)Não informado. Annual Report of the Canal Zone Plant Introduction Gardens. Panamá: Panama Canal Press, 2021.
MLA-Zitierstil (8. Ausg.)Não informado. Annual Report of the Canal Zone Plant Introduction Gardens. Panama Canal Press, 2021.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.