1987 - Bibliographical Review of Pachypappa Tremulae a Root Aphid of Conifer Seedlings in Containers [L.] (Paperback) → Paperback ISBN: 226546 Genre: Science & Math ? 1987 - Bibliographical Review of Pachypappa Tremulae a Root Aphid of Conifer Seedlings in Containers [L] (Paperback) → Paperback ISBN: 297014 Genre: Science & Math ? |