Graf, A. B. (1973). Exotica; pictorial cyclopedia of exotic plants from tropical and near-tropic regions (7th ed.). Roehrs.
Citace podle Chicago (17th ed.)Graf, Alfred Byrd. Exotica; Pictorial Cyclopedia of Exotic Plants from Tropical and Near-tropic Regions. 7th ed. U.S.A: Roehrs, 1973.
Citace podle MLA (9th ed.)Graf, Alfred Byrd. Exotica; Pictorial Cyclopedia of Exotic Plants from Tropical and Near-tropic Regions. 7th ed. Roehrs, 1973.
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