Não informado. Annual Progress Report on Agricultural Research and Experimentation. University of Manitoba.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Annual Progress Report on Agricultural Research and Experimentation. Manitoba, Canada: University of Manitoba.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Annual Progress Report on Agricultural Research and Experimentation. University of Manitoba.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.