Samuel W. (Samuel Wendell) Williston - Böcker

Manual of the Families and Genera of the North American Diptera [microform]

Notes and Descriptions of North American Tabanidæ [microform]

Synopsis of the Families and Genera of North American Diptera [microform]

Exclusive of the Genera of the Nematocera and Muscidæ, With Bibliography and New Species, 1878-88

Manual of the Families and Genera of the North American Diptera [microform]

Synopsis of the Families and Genera of North American Diptera [microform]

Exclusive of the Genera of the Nematocera and Muscidæ, With Bibliography and New Species, 1878-88

North American Species of Conops [microform]

On the North American Asilidae (Dasypogoninae, Laphrinae), With a New Genus of Syrphidae [microform]

Contribution to a Monograph of the North American Syrphidae [microform]