Cita APA (7a ed.)
GRAF, A. B. (1978). EXOTICA: PICTORIAL CYCLOPEDIA OF EXOTIC PLANTS FROM TROPICAL AND NEAR TROPIC REGIONS (9A. ED.). ROEHRS.
Cita Chicago Style (17a ed.)
GRAF, ALFRED BYRD. EXOTICA: PICTORIAL CYCLOPEDIA OF EXOTIC PLANTS FROM TROPICAL AND NEAR TROPIC REGIONS. 9A. ED. NEW JERSEY: ROEHRS, 1978.
Cita MLA (9a ed.)
GRAF, ALFRED BYRD. EXOTICA: PICTORIAL CYCLOPEDIA OF EXOTIC PLANTS FROM TROPICAL AND NEAR TROPIC REGIONS. 9A. ED. ROEHRS, 1978.
Precaución: Estas citas no son 100% exactas.