James, H.C. 1939 Further studies on the reproductive methods of certain species of Coccidae (Homoptera).. Transactions of the Royal Entomological Society of London 89: 569-577.
James, H.C. 1939 Further studies on the reproductive methods of certain species of Coccidae (Homoptera).. Transactions of the Royal Entomological Society of London 89: 569-577.