Thomas, Graham Stuart
Plants for ground-cover
Oregon Sagapress, 1990
Buku Teks
Timo Pukkala, editor
Continuous cover forestry
[, Springer], 2012
eBooks
The cover Mary W. LoLordo
Artikel Jurnal
Reid, Ian, 1943-
The short story
Routledge, 1994
Buku Teks
Robinson, Andrew
The story of measurement
Thames & Hudson, 2007
Buku Teks