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Authors whose works are in public domain in at least one jurisdiction

List of works by Gordon Floyd Ferris

A contribution to the knowledge of the Coccidae of southwestern United States ⬇️

Stanford University, Calif.: The University, 1919.

Scale insects of the Santa Cruz peninsula ⬇️

Stanford University: The University, 1920.

The Anoplura and Mallophaga of North American mammals ⬇️

Stanford University, Cal., The University, 1915.

The California species of mealy bugs ⬇️

Stanford University, Cal., The University, 1918.

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