The dark European honeybee : Apis mellifera mellifera Linnaeus 1758 /
Ruttner, Friedrich.
Milner, Eric,1910-
Dews, John E.(John Ellis),1928-
British Isles Bee Breeders' Association.
Cogenhoe : British Isles Bee Breeders Association,
2004.
Previous ed.: 1990.
Honeybee.