Não informado. (2001). Annual Report of the Secretary of the State Pomological Society of Michigan. State Pomological Society of Michigan.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annual Report of the Secretary of the State Pomological Society of Michigan. Lansing, Mich: State Pomological Society of Michigan, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annual Report of the Secretary of the State Pomological Society of Michigan. State Pomological Society of Michigan, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.