GRAF, A. B. (1992). Hortica: A color cyclopedia of garden flora il all climates and indoor plants. Roehrs Comfpany.
Chicago Style (17th ed.) CitationGRAF, Alfred Byrd. Hortica: A Color Cyclopedia of Garden Flora Il All Climates and Indoor Plants. Roehrs Comfpany, 1992.
MLA (8th ed.) CitationGRAF, Alfred Byrd. Hortica: A Color Cyclopedia of Garden Flora Il All Climates and Indoor Plants. Roehrs Comfpany, 1992.
Warning: These citations may not always be 100% accurate.