Não informado. (1923). Canadian insect pest review. Department of Agriculture, Division of Entomology.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Canadian Insect Pest Review. Ottawa: Department of Agriculture, Division of Entomology, 1923.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Canadian Insect Pest Review. Department of Agriculture, Division of Entomology, 1923.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.