Portugal. Commissão, Exposição internacional, & Lisbon. Instituto de agronomia e veterinaria. (1876). International exhibition, 1876. Philadelphia. Portugal: Catalogues: agriculture and colonies.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPortugal. Commissão, Exposição internacional, এবং Lisbon. Instituto de agronomia e veterinaria. International Exhibition, 1876. Philadelphia. Portugal: Catalogues: Agriculture and Colonies. [n.p, 1876.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিPortugal. Commissão, Exposição internacional, এবং Lisbon. Instituto de agronomia e veterinaria. International Exhibition, 1876. Philadelphia. Portugal: Catalogues: Agriculture and Colonies. 1876.
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