International Board for Plant Genetic Resources. (1987). Descriptor list for apple malus. IBPGR Secretariat.
Čikaški stil citiranja (17. izdanje)International Board for Plant Genetic Resources. Descriptor List for Apple Malus. Roma: IBPGR Secretariat, 1987.
MLA način citiranja (9. izdanje)International Board for Plant Genetic Resources. Descriptor List for Apple Malus. IBPGR Secretariat, 1987.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.