DAVIDSON, L. P. A. R. (1956). INSECT PESTS OF FORM, GARDEN, AND ORCHARD. John Wiley & Sons Inc.
Lua i Stíl Chicago (17ú heag.)DAVIDSON, L.M. PEAIRS AND R.H. INSECT PESTS OF FORM, GARDEN, AND ORCHARD. John Wiley & Sons Inc, 1956.
Lua MLA (8ú heag.)DAVIDSON, L.M. PEAIRS AND R.H. INSECT PESTS OF FORM, GARDEN, AND ORCHARD. John Wiley & Sons Inc, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.