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

List of works by Owain Richards

A Check List of British Insects. Part 4: Hymenoptera

publication from 1978

Hymenoptera. Introduction and Keys to Families

publication from 1956

Hymenoptera. Introduction and Keys to Families ⬇️

publication from 1977

Manual of Nearctic Diptera Volume 1 ⬇️

Volume 1 of Manual of Nearctic Diptera, by McAlpine et al. (1981)

Manual of Nearctic Diptera Volume 2 ⬇️

Volume 2 of Manual of Nearctic Diptera, by McAlpine et al. (1987)

Scolioidea, Vespoidea and Sphecoidea. Hymenoptera, Aculeata ⬇️

publication from 1980

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