Directory of short-horn breeders of the United States alphabetically arranged by states, 1905.

Mode of access: Internet.

American short-horn herd book, containing pedigrees of short-horn cattle / American Short-horn Breeders' Association.

Mode of access: Internet.

Penology from Panama to cape Horn,

Bibliography of journals on the subject published in Latin America: p. 255-257.

Diptera danica : genera and species of flies hitherto found in Denmark /

"Published at the expenses of the Carlsberg fund."