Books by Roger Spencer
Horticultural Flora of South-Eastern Australia Vol. 5
Horticultural Flora of South Eastern Australia Volume 2: Flowering Plants (v. 2: Pt. 1)
Horticultural flora of south-eastern Australia
Horticulture Flora of Southeastern Australia: Ferns, Conifers & Their Allies
Application of modern inventor
Application of modern inventory techniques in the forests of Western Australia
Elms in Australia
Elms in Australia
Growing silver, grey & blue foliage plants